Vinod Sharma

Distributed Joint Source-Channel Coding on a Multiple Access Channel with Side Information (2008)

We consider the problem of several users transmitting packets to a base station, and study an optimal scheduling formulation involving three communication layers, namely,the medium access control,...

Rajesh, R., Sharma, Vinod

We consider the problem of transmission of several distributed sources over a multiple access channel (MAC) with side information at the sources and the decoder. Source-channel separation does not...

Exponential diversity achieving spatio - temporal allocation scheme for MIMO fading channels, submitted (2008)

K. Premkumar, A. Rangarajan, Vinod Sharma

Abstract — We analyze optimum (space–time) adaptive power transmission policies for Rayleigh fading MIMO channels when CSIT and CSIR are available. We show that our power allocation policy...

Providing QoS to real time and TCP connections via rate control (2008)

Vinod Sharma

We consider a system where streaming and/or real time applications, using the UDP protocol pass through a bottleneck router. Several TCP connections may also be passing through that router. Using the...

Distributed Coding for Multiple Access Communication with Side Information (2008)

Virendra K. Varshneya, Vinod Sharma

Abstract — In a typical sensor network scenario a goal is to monitor a spatio-temporal process through a number of inexpensive sensing nodes, the key parameter being the fidelity at which the...

FAFS: A New MAC Protocol for Wireless ATM (2008)

Sandeep Jain, Vinod Sharma

Wireless ATM (WATM) is being envisaged as the next gen-eration wireless solution for meeting the demands of the users. Besides supporting high data transfer rates, it also provides QoS...

Generol Conference (Part A) Estimating Traffic Intensities at Different Nodes in Networks via a Probing Stream (2008)

Vinod Sharma

Abstract. In future it will be increasingly important for the customers and the service providers to make measure-ments in the Internet to ensure the QoS required by various services. But not...

A FINITE BUFFER QUEUE General Conference.(Part B) (2008)

Vinod Sharma, Jonna T. Virtamo

Abstract. We consider a queue with finite buffer where the buffer size limits the amount of work that can be stored in the queue. The arrival process is a Poisson or a Markov mod-ulated Poisson...

Adaptive Joint Source/Channel Rate Allocation Policies for Delay Sensitive Applications over Fading Channels (2008)

C. Thejaswi, Vinod Sharma

Abstract — We consider a problem of optimal source-channel coding rate pair allocation over a wireless link based on the channel state and the queue length at the transmitter. We show that by this...

Information-theoretic and Communication-theoretic Optimal Power Allocation for Fading Channels (2008)

Arun Rangarajanl, Vinod Sharma, Shailendra K. Singh

In this paper we study power allocation (PA) policies for fading channels when perfect CSIR and perfect CSIT are available. The transmitter has an average power constraint. Information-theoretic (IT)...

Lossy distributed source coding with side information.” Submitted (2008)

Virendra K. Varshneya, Vinod Sharma

Abstract — In a typical sensor network scenario a goal is to monitor a spatio-temporal process through a number of inexpensive sensing nodes, the key parameter being the fidelity at which the...

Power allocation policies for convolutional and turbo coded systems over fading channels,” submitted (2008)

Arun Rangarajan, Shalendra K. Singh, Vinod Sharma

Abstract- In this paper we study adaptive power allocation (PA) policies for improving the performance of convolutional and turbo codes on fading channels. The transmitter has an average power...

Capacity of Markov Channels: A Stochastic Control Approach (2008)

Vivek S. Borkar, Arzad A. Kherani, Vinod Sharma

The problem of maximizing the input-output mutual information rate for a Markov channel is cast as a problem of controlling a partially observed controlled Markov chain on a suitable state space with...

Optimal Resource Allocation Policies for a Multiaccess Fading Channel with a Quality of Service Constraint (2008)

Munish Goyal Vinod, Vinod Sharma, Anurag Kumar

this paper we consider the uplink of a wireless system with M users communicating with a base station. All users can transmit simultaneously unlike a TDMA based system considered in [1]. We will...

Participatory design in the development of the wheelchair convoy system (2008)

Sharma, Vinod, Simpson, Richard C, LoPresti, Edmund F, Mostowy, Casimir, Olson, Joseph, Puhlman, Jeremy, ...

Abstract Background In long-term care environments, residents who have severe mobility deficits are typically transported by having another person push the individual in a manual wheelchair. This...

Exponential Diversity Achieving Spatio–Temporal Power Allocation Scheme for Fading Channels (2008)

Sharma, Vinod, Premkumar, Karumbu, Swamy, Raghava N

In this paper, we analyze optimal (in space and time) adaptive power transmission policies for fading channels when the channel-state information (CSI) at the transmitter (CSIT) and the receiver...

Exponential Diversity Achieving Spatio–Temporal Power Allocation Scheme for Fading Channels (2008)

Sharma, Vinod, Premkumar, Karumbu, Swamy, Raghava N

In this paper, we analyze optimal (in space and time) adaptive power transmission policies for fading channels when the channel-state information (CSI) at the transmitter (CSIT) and the receiver...

Optimal Cross-Layer Scheduling of Transmissions Over a Fading Multiaccess Channel (2008)

When is Delayed Feedback More Effective? (2007)

We consider the problem of several users transmitting packets to a base station, and study an optimal scheduling formulation involving three communication layers, namely,the medium access control,...

Jitendra K. Singh, Vinod Sharma

Abstract:-- We consider the problem of the effectiveness of the delayed feedback in stochastic systems. Our motivation is the congestion control and scheduling of channels in communication networks...

FAFS: A New MAC Protocol for Wireless ATM (2007)

Sandeep Jain, Vinod Sharma, Dheeraj Sanghi

Wireless ATM (WATM) is being envisaged as the next generation wireless solution for meeting the demands of the users. Besides supporting high data transfer rates, it also provides QoS...

Neglected isolated plantar dislocation of middle cuneiform : a case report (2007)

Verma, Ashu, Sharma, Vinod, Batra, Sumit, Rohria, Mahender

Abstract Background Four cases of plantar dislocation of middle cuneiform have been reported in the english literature. All of them were fresh cases and treated with open reduction. We are reporting...

Adaptive Joint Source–Channel Rate Allocation Policies for Delay Sensitive Applications Over Fading Channels (2006)

Adaptive Joint Source–Channel Rate Allocation Policies for Delay Sensitive Applications Over Fading Channels (2006)

In this correspondence, we consider a problem of optimal source, channel coding rate pair allocation over a wireless link based on the channel fading state and the queue length of the transmitter....

A unified approach for analyzing persistent, non-persistent and on-off tcp sessions in the internet (2006)

In this correspondence, we consider a problem of optimal source, channel coding rate pair allocation over a wireless link based on the channel fading state and the queue length of the transmitter....

Gupta, Atul, Sharma, Vinod

Most of the studies on TCP assume a fixed number of persistent TCP connections. A few of the recent studies look at non-persistent TCP connections but with many limiting assumptions. We look at a...

A unified approach for analyzing persistent, non-persistent and on-off tcp sessions in the internet (2006)

Gupta, Atul, Sharma, Vinod

Most of the studies on TCP assume a fixed number of persistent TCP connections. A few of the recent studies look at non-persistent TCP connections but with many limiting assumptions. We look at a...

Adaptive Joint Source–Channel Rate Allocation Policies for Delay Sensitive Applications Over Fading Channels (2006)

Performance analysis of a fluid queue with random service rate in dicrete-time (2006)

In this correspondence, we consider a problem of optimal source, channel coding rate pair allocation over a wireless link based on the channel fading state and the queue length of the transmitter....

Boxma, OJ, Sharma, Vinod, Prasad, DK

Adaptive Joint Source–Channel Rate Allocation Policies for Delay Sensitive Applications Over Fading Channels (2006)

A prototype power assist wheelchair that provides for obstacle detection and avoidance for those with visual impairments (2005)

In this correspondence, we consider a problem of optimal source, channel coding rate pair allocation over a wireless link based on the channel fading state and the queue length of the transmitter....

Simpson, Richard, LoPresti, Edmund, Hayashi, Steve, Guo, Songfeng, Ding, Dan, Ammer, William, ...

Abstract Background Almost 10% of all individuals who are legally blind also have a mobility impairment. The majority of these individuals are dependent on others for mobility. The Smart Power...

Convergence and Performance Analysis of Godard Family and Multimodulus Algorithms for Blind Equalization (2005)

Sharma, Vinod, Raj, Naveen V

We obtain the convergence of the Godard family [including the Sato andconstant modulus (CM) algorithms] and the multimodulus algorithms (MMA)in a unified way. Our analysis also works for CMA...

Convergence and Performance Analysis of Godard Family and Multimodulus Algorithms for Blind Equalization (2005)

Sharma, Vinod, Raj, Naveen V

We obtain the convergence of the Godard family [including the Sato andconstant modulus (CM) algorithms] and the multimodulus algorithms (MMA)in a unified way. Our analysis also works for CMA...

Comparison of Training, Blind and Semi Blind Equalizers in MIMO Fading Systems Using Capacity as Measure (2005)

Molecular and genetic basis of resistance to Russian wheat aphid (Diuraphis noxia) / (2005)

Semi blind/blind equalizers are believed to work unsatisfactorily in fading MIMO channels compared to training based methods, due to slow convergence or high computational complexity. We revisit this...

Comparison of Training, Blind and Semi Blind Equalizers in MIMO Fading Systems Using Capacity as Measure (2005)

Thesis (Ph.D.)--Colorado State University, 2005.

Convergence and Performance Analysis of Godard family and Multi Modulus Algorithms for Blind Equalization (2005)

Semi blind/blind equalizers are believed to work unsatisfactorily in fading MIMO channels compared to training based methods, due to slow convergence or high computational complexity. We revisit this...

Vinod Sharma, Senior Member, V. Naveen Raj, Student Member

Abstract—We obtain the convergence of the Godard family [including the Sato and constant modulus (CM) algorithms] and the multimodulus algorithms (MMA) in a unified way. Our analysis also works for...

Convergence and Performance Analysis of Godard family and Multi Modulus Algorithms for Blind Equalization (2005)

Vinod Sharma, Naveen Rajv

Abstract- We obtain the convergence of the Godard family (including SATO and CM algorithms) in a unified way. Our assumptions are quite realistic: the channel input can be asymptotically stationary...

Stability and Analysis of TCP Connections with RED Control and Exogenous Traffic (2004)

Providing QoS to TCP and Real Time Connections in the Internet (2004)

In this paper we study the stability and performance of a system involving several TCP connections passing through a tandem of RED controlled queues each of which has an incoming exogenous stream....

Reddy, Venugopal V, Sharma, Vinod, Suma, MB

We consider a system where streaming and/or real time applications, using the UDP protocol pass through a bottleneck router. Several persistent and non persistent TCP connections may also be passing...

Adaptive Joint Source/Channel Rate Allocation Policies for Delay Sensitive Applications over Fading Channels (2004)

Thejaswi, C, Sharma, Vinod

We consider a problem of optimal source-channel coding rate pair allocation over a wireless link based on the channel state and the queue length at the transmitter. We show that by this scheme, one...

Exponential Diversity Achieving Spatio-Temporal Power Allocation Scheme for MIMO Fading Channels (2004)

Premkumar, K, Rangarajan, A, Sharma, Vinod

We analyze optimum (space-time) adaptive power transmission policies for Rayleigh fading MIMO channels when CSIT and CSIR are available. We show that our power allocation policy provides exponential...

Stability and Analysis of TCP Connections with RED Control and Exogenous Traffic (2004)

Providing QoS to TCP and Real Time Connections in the Internet (2004)

In this paper we study the stability and performance of a system involving several TCP connections passing through a tandem of RED controlled queues each of which has an incoming exogenous stream....

Reddy, Venugopal V, Sharma, Vinod, Suma, MB

We consider a system where streaming and/or real time applications, using the UDP protocol pass through a bottleneck router. Several persistent and non persistent TCP connections may also be passing...

Information Theoretic Comparison of Training, Blind and Semi Blind Signal Separation Algorithms in Mimo Systems (2004)

A Simple Approach to Provide QOS and Fairness in Internet (2004)

We consider the problem of comparing source/signal separation algorithms for MIMO wireless channels. The channel state is not known to the transmitter and the receiver. The receiver estimates the...

Kamble, Vihang, Sharma, Vinod

We propose an approach to provide QoS in Internet for real and non-real time applications. This is a modification of an approach suggested in [13]. [14] and simplifies the overall procedure. It also...

Adaptive Joint Source/Channel Rate Allocation Policies for Delay Sensitive Applications over Fading Channels (2004)

Thejaswi, C, Sharma, Vinod

We consider a problem of optimal source-channel coding rate pair allocation over a wireless link based on the channel state and the queue length at the transmitter. We show that by this scheme, one...

Exponential Diversity Achieving Spatio-Temporal Power Allocation Scheme for MIMO Fading Channels (2004)

Premkumar, K, Rangarajan, A, Sharma, Vinod

We analyze optimum (space-time) adaptive power transmission policies for Rayleigh fading MIMO channels when CSIT and CSIR are available. We show that our power allocation policy provides exponential...

Information Theoretic Comparison of Training, Blind and Semi Blind Signal Separation Algorithms in Mimo Systems (2004)

A Simple Approach to Provide QOS and Fairness in Internet (2004)

We consider the problem of comparing source/signal separation algorithms for MIMO wireless channels. The channel state is not known to the transmitter and the receiver. The receiver estimates the...

Kamble, Vihang, Sharma, Vinod

We propose an approach to provide QoS in Internet for real and non-real time applications. This is a modification of an approach suggested in [13]. [14] and simplifies the overall procedure. It also...

Comparison of Training, Blind and Semi Blind Equalizers in MIMO Fading Systems using Capacity as measure”, Technical report no: TR-PME-200410, DRDO-IISc programme (2004)

Veeraruna Kavitha, Vinod Sharma

Semiblind/blind equalizers are believed to work unsatisfactorily in fading MIMO channels compared to training based methods, due to slow convergence or high computational complexity. In this paper we...

Power Allocation Policies for Convolutional and Turbo Coded Systems Over Fading Channels (2003)

Rangarajan, Arun, Singh, Shialendra K, Sharma, Vinod

In this paper we study adaptive power allocation (PA) policies for improving the performance of convolutional and turbo codes on fading channels. The transmitter has an average power constraint. The...

QoS Routing in MPLS Networks Using Active Measurements (2003)

Mishra, Rahul, Sharma, Vinod

We consider the problem of selecting an appropriate LSP for a new connection request from several possible LSPs which can satisfy the QoS of the new connection. We propose an active measurement...

Power Constrained and Delay Optimal Policies for Scheduling Transmission over a Fading Channel (2003)

Power Allocation Policies for Convolutional and Turbo Coded Systems Over Fading Channels (2003)

We consider an optimal power and rate scheduling problem for a single user transmitting to a base station on a fading wireless link with the objective of minimizing the mean delay subject to an...

Rangarajan, Arun, Singh, Shialendra K, Sharma, Vinod

In this paper we study adaptive power allocation (PA) policies for improving the performance of convolutional and turbo codes on fading channels. The transmitter has an average power constraint. The...

QoS Routing in MPLS Networks Using Active Measurements (2003)

Mishra, Rahul, Sharma, Vinod

We consider the problem of selecting an appropriate LSP for a new connection request from several possible LSPs which can satisfy the QoS of the new connection. We propose an active measurement...

Power Constrained and Delay Optimal Policies for Scheduling Transmission over a Fading Channel (2003)

Power constrained and delay optimal policies for scheduling transmission over a fading channel (2003)

We consider an optimal power and rate scheduling problem for a single user transmitting to a base station on a fading wireless link with the objective of minimizing the mean delay subject to an...

Munish Goyal, Anurag Kumar, Vinod Sharma

We consider an optimal power and rate scheduling problem for a single user transmitting to a base station on a fading wireless link with the objective of minimizing the mean delay subject to an...

Power constrained and delay optimal policies for scheduling transmission over a fading channel (2003)

Munish Goyal, Anurag Kumar, Vinod Sharma

We consider an optimal power and rate scheduling problem for a single user transmitting to a base station on a fading wireless link with the objective of minimizing the mean delay subject to an...

A finite buffer queue with priorities (2002)

Sharma, Vinod, Virtamo, Jorma T

We consider a queue with finite buffer where the buffer size limits the amount of work that can be stored in the queue. The arrival process is a Poisson or a Markov modulated Poisson process. The...

Optimal Resource Allocation Policies for a Multiaccess Fading Channel with a Quality of Service Constraint (2002)

Optimal Power Control for Convolutional and Turbo Codes over Fading Channels (2002)

In this work we seek optimal transmission policies for multiaccess fading channels with AWGN, under a network layer quality of service constraint.We consider $M$ unbuffered variable bit rate (VBR)...

Ahuja, Satyajeet S, Sharma, Vinod

We consider the problem of optimal power allocation to a user transmitting on a fading channel. The our Is using some specific, convolutional or turbo code. The cost function to be minimized is the...

Optimal Power Allocation for Multiaccess Fading Channels with Minimum Rate Guarantees (2002)

Algorithms for Computing the Capacity of Markov Channels with Side Information (2002)

Future wireless networks will have to support multimedia services which possess inherent quality of service (QoS) requirements. A minimum rate guarantee is often an important QoS requirement. We...

Singh, Shailendra K, Sharma, Vinod

Consider a finite state, irreducible Markov channel $\lbrace{S_k}\rbrace$. At time k the channel output $Y_k$ depends only on the channel input $X_k$ and the channel state $S_k$. Let $U_k$ and $V_k$...

Optimal Buffer Scheduling over a Fading Channel with an Average Power Constraint: The Single User Case (2002)

Performance Analysis of Battery Power Management Schemes in Wireless Mobile Devices (2002)

We consider an optimal power and rate scheduling problem for a single user transmitting to a base station on a fading wireless link with the objective of providing transmission delay guarantees. The...

Prabhu, Balakrishna J, Chockalingam, A, Sharma, Vinod

In this paper, we analyze the performance of battery power management schemes in wireless mobile devices using a queueing theory approach. We model the battery as a server with finite service...

A finite buffer queue with priorities (2002)

Sharma, Vinod, Virtamo, Jorma T

We consider a queue with finite buffer where the buffer size limits the amount of work that can be stored in the queue. The arrival process is a Poisson or a Markov modulated Poisson process. The...

Optimal Resource Allocation Policies for a Multiaccess Fading Channel with a Quality of Service Constraint (2002)

Optimal Power Control for Convolutional and Turbo Codes over Fading Channels (2002)

In this work we seek optimal transmission policies for multiaccess fading channels with AWGN, under a network layer quality of service constraint.We consider $M$ unbuffered variable bit rate (VBR)...

Ahuja, Satyajeet S, Sharma, Vinod

We consider the problem of optimal power allocation to a user transmitting on a fading channel. The our Is using some specific, convolutional or turbo code. The cost function to be minimized is the...

Optimal Power Allocation for Multiaccess Fading Channels with Minimum Rate Guarantees (2002)

Algorithms for Computing the Capacity of Markov Channels with Side Information (2002)

Future wireless networks will have to support multimedia services which possess inherent quality of service (QoS) requirements. A minimum rate guarantee is often an important QoS requirement. We...

Singh, Shailendra K, Sharma, Vinod

Consider a finite state, irreducible Markov channel $\lbrace{S_k}\rbrace$. At time k the channel output $Y_k$ depends only on the channel input $X_k$ and the channel state $S_k$. Let $U_k$ and $V_k$...

Optimal Buffer Scheduling over a Fading Channel with an Average Power Constraint: The Single User Case (2002)

Performance Analysis of Battery Power Management Schemes in Wireless Mobile Devices (2002)

We consider an optimal power and rate scheduling problem for a single user transmitting to a base station on a fading wireless link with the objective of providing transmission delay guarantees. The...

Prabhu, Balakrishna J, Chockalingam, A, Sharma, Vinod

In this paper, we analyze the performance of battery power management schemes in wireless mobile devices using a queueing theory approach. We model the battery as a server with finite service...

Performance analysis of battery power management schemes in wireless mobile devices,”Proc (2002)

Balakrishna J. Prabhu, A. Chockalingam, Vinod Sharma

Abstract---In this paper, we analyze the performance of battery power management schemes in wireless mobile devices using a queueing theory approach. We model the battery as a server with finite...

Performance analysis of battery power management schemes in wireless mobile devices,”Proc (2002)

Balakrishna J. Prabhu, A. Chockalingam, Vinod Sharma

Abstract—In this paper, we analyze the performance of battery power management schemes in wireless mobile devices using a queueing theory approach. We model the battery as a server with finite...

Performance analysis of battery power management schemes in wireless mobile devices,”Proc (2002)

Balakrishna J. Prabhu, A. Chockalingam, Vinod Sharma

Abstract—In this paper, we analyze the performance of battery power management schemes in wireless mobile devices using a queueing theory approach. We model the battery as a server with finite...

A Dynamical System View for the Turbo Decoding Algorithm Based on the Gaussian Approximation ABSTRACT (2002)

Arun Rangarajan, Vinod Sharma

The Gaussian approximation has been used to study iterative decoding algorithms of graph-based codes like turbo codes [7, 8] and low-density parity check (LDPC) codes [6]. In this work, the Gaussian...

Queues with Service Rate Controlled by a Delayed Feedback (2001)

Entropy and Channel Capacity in the Regenerative Setup with Applications to Markov Channels (2001)

We consider a single queue with a Markov modulated Poisson arrival process. Its service rate is controlled by a scheduler. The scheduler receives the workload information from the queue after a...

Sharma, Vinod, Singh, SK

We obtain new entropy and mutual information formulae for regenerative stochastic processes. We use them on Markov channels to generalize the results in Goldsmith and Varaiya [3]. Also we obtain...

Estimating Traffic Parameters in Internet via Active Measurements for QoS and Congestion Control (2001)

Sharma, Vinod, Suma, MB

In this paper we develop a scheme which can help provide certain QoS via active measurement techniques. We send a probing stream, using TCP or UDP, on a path with one bottleneck router. Several TCP...

Performance Analysis of TCP Connections with RED Control and Exogenous Traffic (2001)

Queues with Service Rate Controlled by a Delayed Feedback (2001)

We study the stability and performance of a system involving several TCP connections passing through a tandem of RED controlled queues each of which has an incoming exogenous stream. The exogenous...

Entropy and Channel Capacity in the Regenerative Setup with Applications to Markov Channels (2001)

We consider a single queue with a Markov modulated Poisson arrival process. Its service rate is controlled by a scheduler. The scheduler receives the workload information from the queue after a...

Sharma, Vinod, Singh, SK

We obtain new entropy and mutual information formulae for regenerative stochastic processes. We use them on Markov channels to generalize the results in Goldsmith and Varaiya [3]. Also we obtain...

Estimating Traffic Parameters in Internet via Active Measurements for QoS and Congestion Control (2001)

Sharma, Vinod, Suma, MB

In this paper we develop a scheme which can help provide certain QoS via active measurement techniques. We send a probing stream, using TCP or UDP, on a path with one bottleneck router. Several TCP...

Performance Analysis of TCP Connections with RED Control and Exogenous Traffic (2001)

Entropy and channel capacity in the regenerative setup with applications to Markov channels (2001)

We study the stability and performance of a system involving several TCP connections passing through a tandem of RED controlled queues each of which has an incoming exogenous stream. The exogenous...

Vinod Sharma, S. K. Singh

We obtain new entropy and mutual information formulae for regenerative stochastic processes. Our formulae reduce to the well know formulae in the special case of Markov chains. We use these formulae...

Entropy and channel capacity in the regenerative setup with applications to Markov channels (2001)

Vinod Sharma, S. K. Singh

Abstract | We obtain new entropy and mutual information formulae for regenerative stochastic processes. We use them on Markov channels to generalize the results in Goldsmith and Varaiya [3]. Also we...

Entropy and channel capacity in the regenerative setup with applications to Markov channels (2001)

Vinod Sharma

Abstract- We obtain new entropy and mutual in-formation formulae for regenerative stochastic pro-cesses. We use them on Markov channels to generalize the results in Goldsmith and Varaiya [3]. Also we...

Queueing systems with random service rate (2000)

Queueing systems with random service rate (2000)

We consider a queue with the arrival process, the service time process and the service rate process as regenerative processes.We provide conditions for its stability, rates of convergence, finiteness...

Field-induced transmembrane potential and intracellular calcium responses of isolated cardiac cells/cell-pairs [microform] / (2000)

We consider a queue with the arrival process, the service time process and the service rate process as regenerative processes.We provide conditions for its stability, rates of convergence, finiteness...

Estimating Traffic Intensities at Different Nodes in Networks via a Probing Stream (1999)

Vita.

Estimating Traffic Intensities at Different Nodes in Networks via a Probing Stream (1999)

In future it will be increasingly important for the customers and the service providers to make measurements in the Internet to ensure the QoS required by various services. But not everyone will have...

Stability and performance analysis of rate-based feedback flow controlled ATM networks (1998)

In future it will be increasingly important for the customers and the service providers to make measurements in the Internet to ensure the QoS required by various services. But not everyone will have...

Sharma, Vinod, Kuri, Joy

Motivated by available bit rate class of service in ATM networks, we study a continuous time queueing system with a feedback control of the arrival rate of some of the sources. The feedback about the...

Estimating traffic parameters in queueing systems with local information (1998)

Sharma, Vinod, Mazumdar, Ravi

In ATM networks a new connection is accepted if the CAC (call acceptance controller) at the entering node decides that the network has the requisite resources for the incoming traffic. For this, the...

Comparison of TDMA Versus CDMA for Packet Transmission Schemes in Circuit-Mode (1998)

Sant, Jeetendra, Sharma, Vinod

We compare the performance of a TDMA multiple access scheme with a CDMA multiple access scheme when both are used for packet transmission in the circuit-mode. First we consider a more general model...

Estimating traffic parameters in queueing systems with local information (1998)

Sharma, Vinod, Mazumdar, Ravi

In ATM networks a new connection is accepted if the CAC (call acceptance controller) at the entering node decides that the network has the requisite resources for the incoming traffic. For this, the...

Stability and performance analysis of rate-based feedback flow controlled ATM networks (1998)

Sharma, Vinod, Kuri, Joy

Motivated by available bit rate class of service in ATM networks, we study a continuous time queueing system with a feedback control of the arrival rate of some of the sources. The feedback about the...

Comparison of TDMA Versus CDMA for Packet Transmission Schemes in Circuit-Mode (1998)

Sant, Jeetendra, Sharma, Vinod

We compare the performance of a TDMA multiple access scheme with a CDMA multiple access scheme when both are used for packet transmission in the circuit-mode. First we consider a more general model...

Approximations of general discrete time queues by discrete time queues with arrivals modulated by finite chains (1997)

Asymptotics for transient and stationary probabilities for finite and infinite buffer discrete time queues (1997)

Recently, Asmussen and Koole showed that any discrete or continuous time marked point process can be approximated by a sequence of arrival streams modulated by finite state continuous time Markov...

Sharma, Vinod, Gangadhar, Nandyala D

Consider a discrete time queue with i.i.d. arrivals (see the generalisation below) and a single server with a buffer length m. Let $T_m$ be the first time an overflow occurs. We obtain asymptotic...

Approximations of general discrete time queues by discrete time queues with arrivals modulated by finite chains (1997)

Asymptotics for transient and stationary probabilities for finite and infinite buffer discrete time queues (1997)

Recently, Asmussen and Koole showed that any discrete or continuous time marked point process can be approximated by a sequence of arrival streams modulated by finite state continuous time Markov...

Sharma, Vinod, Gangadhar, Nandyala D

Consider a discrete time queue with i.i.d. arrivals (see the generalisation below) and a single server with a buffer length m. Let $T_m$ be the first time an overflow occurs. We obtain asymptotic...

T. Toward distributed use of large-scale ontologies (1996)

Munish Goyal, Anurag Kumar, Vinod Sharma

We develop scheduling strategies for carrying multimedia traffic over a polled multiple access wireless network with fading. We consider a slotted system with three classes of traffic (voice,...

Reliable estimation via simulation (1995)

Stability and continuity of polling systems (1994)

Let a and s denote the inter arrival times and service times in a GI/GI/1 queue. Let a (n), s (n) be the r.v.s, with distributions as the estimated distributions of a and s from iid samples of a and...

Study of electroporation in artificial lipid membranes using charge pulse and voltage clamp techniques /--by Vinod Sharma. (1994)

The stability of a polling system with exhaustive service and a finite number of users, each with infinite buffers is considered. The arrival process is more general than a Poisson process and the...

Stability and continuity of polling systems (1994)

Thesis (M.A.)--Johns Hopkins University, 1995.

Open queueing networks in discrete time- some limit theorems (1993)

The stability of a polling system with exhaustive service and a finite number of users, each with infinite buffers is considered. The arrival process is more general than a Poisson process and the...

Open queueing networks in discrete time- some limit theorems (1993)

A finite number of nodes, each with a single server and infinite buffers, is considered in discrete time. The service may be FIFO and the service times are constant. The external arrivals and the...

A Hybrid access protocol for multiple access satelite communications network (1991)

A finite number of nodes, each with a single server and infinite buffers, is considered in discrete time. The service may be FIFO and the service times are constant. The external arrivals and the...

Sharma, Vinod, Prathima, BV

A new hybrid protocol for multiple access in satellite communication is proposed. Its stability is proved under general stationary assumptions. Also, we show the continuity of the system...

A Hybrid access protocol for multiple access satelite communications network (1991)

Sharma, Vinod, Prathima, BV

A new hybrid protocol for multiple access in satellite communication is proposed. Its stability is proved under general stationary assumptions. Also, we show the continuity of the system...

Stability of multiple access communication networks (1990)

Stability of multiple access communication networks (1990)

The problem of stability of different multiple access schemes in computer networks is discussed. The results for the main multiple access schemes -slotted ALOHA, controlled ALOHA, CSMA, CSMA/CD,...

Application of finite element and expert system methods to a study of shoulder dystocia /--by Vinod Sharma. (1988)

The problem of stability of different multiple access schemes in computer networks is discussed. The results for the main multiple access schemes -slotted ALOHA, controlled ALOHA, CSMA, CSMA/CD,...