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Author

T. G. Venkatesh

Bio: T. G. Venkatesh is an academic researcher from Indian Institute of Technology Madras. The author has contributed to research in topic(s): Handover & Radio resource management. The author has an hindex of 1, co-authored 1 publication(s) receiving 1 citation(s).

Papers
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Proceedings ArticleDOI
14 May 2014
TL;DR: Performance evaluation of some of the important CAC schemes that are proposed in the literature are evaluated using simulations and numerical computation of the theoretical results.
Abstract: Efficient handoff is an important issue in wireless cellular networks in order to provide Quality of Service (QoS) to the users and to support users' mobility. A related important issue in the cellular networks is the call admission control (CAC). The design of the call admission control schemes is especially challenging given the limited resources, and the mobility of users encountered in such networks. The goal of this paper is to do performance evaluation of some of the important CAC schemes that are proposed in the literature using simulations and numerical computation of the theoretical results. The CAC schemes studied include Non-Prioritized Scheme (NPS), Guard Channel Scheme (GCS), Fractional Guard Channel Scheme (FGCS), Guard Channel Scheme with Buffer (GCSB), Two-Level Fractional Guard channel Scheme (TLFGCS), Dynamic Guard Channel Scheme (DGCS) and Adaptive Guard Channel Scheme (AGCS). The performance results obtained from simulation of all these schemes are compared and conclusions are drawn.

1 citations


Cited by
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Proceedings ArticleDOI
01 Nov 2017
TL;DR: Simulation result shows that higher system throughput can be achieved with the proposed call admission control scheme, while the QoS of users remains uninfluenced, and the Call Blocking Probability (CBP) of the system is reduced efficiently and the resource utilization is improved at the same time.
Abstract: Satellite-terrestrial communication network has been proposed in recent years, for its great potential in larger coverage and better load balancing ability for wireless communication networks. However, with the number of users and the traffic load in the network rapidly increasing, the resource of the system becomes more intense. Thus, a proper and high-efficient call admission control scheme is needed to balance the traffic load and properly allocate the limited wireless resources. This paper presents a call admission control scheme with additional consideration of users' Quality of Service (QoS) and cache technique. Firstly, a system model of the satellite-terrestrial communication network is introduced. After that, an objective function of the system throughput is derived and laterly optimized with genetic algorithm. Simulation result shows that higher system throughput can be achieved with the proposed scheme, while the QoS of users remains uninfluenced. Besides, the Call Blocking Probability (CBP) of the system is reduced efficiently, and the resource utilization is improved at the same time.

2 citations