Affordable Access

Access to the full text

CSMA/CA Bottleneck Remediation in Saturation Mode with New Backoff Strategy

Authors
  • Mawlawi, Baher
  • Doré, Jean-Baptiste
Type
Published Article
Publication Date
Jan 07, 2015
Submission Date
Jan 07, 2015
Identifiers
DOI: 10.1007/978-3-319-03871-1_7
Source
arXiv
License
Yellow
External links

Abstract

Many modern wireless networks integrate carrier sense mul-tiple access/collision avoidance (CSMA/CA) with exponential backoff as medium access control (MAC) technique. In order to decrease the MAC overhead and the collision probability, we propose in this paper a new backoff strategy leading to better saturation throughput and access de-lay performance comparing to the classical protocol. We investigate the CSMA/CA with RTS/CTS technique, and we show that our strategy reaches better saturation throughput and access delay especially in dense networks. This proposed strategy distributes users over all the backoff stages to solve the bottleneck problem present in the first backoff stage. Finally, we analyze our strategy and we compare it to the classical one modeled by Markov chain. Analytical and simulation results show the improvment in term of saturation throughput. Cumulative density func-tion (CDF) of the access delay illustrates the important gain obtained by the proposed strategy.

Report this publication

Statistics

Seen <100 times