PSMAC: Polling service-based medium access control for wireless networks

Yihan Li, Shiwen Mao, Shivendra Panwar

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

It has been shown in the literature that many MAC protocols for wireless networks, such as the IEEE 802.11 MAC, have a considerable control overhead, which limits their achievable throughput and delay performance. In this paper, we study the problem of improving the efficiency of MAC protocols. We first analyze the popular p-Persistent CSMA scheme which does not achieve 100% throughput. Motivated by insights from polling system theory, we then present three polling service-based MAC schemes, termed PSMAC, for improved performance. The main idea is to serve multiple data frames after a successful contention resolution, thus amortizing the high control overhead and making the protocols more efficient. We present analysis and simulation studies of the proposed schemes. Our results show that the proposed algorithms can effectively improve the throughput and delay performance of p-Persistent CSMA, as well as providing energy savings. The proposed schemes are more efficient for handling bursty traffic typically found in wireless networks. Finally, we observe that the proposed PSMAC schemes significantly outperform p-Persistent CSMA with respect to fairness.

Original languageEnglish (US)
Title of host publicationProceedings of the 5th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks, WiOpt 2007
DOIs
StatePublished - 2007
Event5th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks, WiOpt 2007 - Limassol, Cyprus
Duration: Apr 16 2007Apr 20 2007

Publication series

NameProceedings of the 5th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks, WiOpt 2007

Other

Other5th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks, WiOpt 2007
CountryCyprus
CityLimassol
Period4/16/074/20/07

ASJC Scopus subject areas

  • Computational Theory and Mathematics
  • Computer Networks and Communications

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