A new dynamic scheme for efficient RTS threshold handling in wireless networks

Mostafa Mjidi, Debasish Chakraborty, Naoki Nakamura, Kazuhide Koidef, Atushi Takeda, Norio Shiratorif

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

9 Citations (Scopus)

Abstract

Wireless network is an essential and integral part of the ubiquitous environment. For efficient access control, two different transmission schemes are used: The Basic Carrier Sensing Multiple Access with Collision Avoidance (CSMA/CA) and Request-To-Send/ Clear-To-Send (RTS/CTS) handshaking. The RTS/CTS handshaking addresses the hidden terminal problem as well as reduces the chance of collision in case of higher node density and traffic. However, in networks with low density, basic scheme would lead to higher throughput due to its less overhead. Efficient switching between these two schemes is imperative to maximize the throughput. We have first investigated to find a meaningful threshold value according to the network situation. The proposed algorithm then dynamically adjusts RTS Threshold according to the packet delivery ratio, which is an indicator of network traffic and shows a significant improvement over existing CSMA/CA and RTS/CTS schemes. Our adaptive scheme performed even better when data rates increases. We verify our proposed scheme with extensive network simulation using ns-2.

Original languageEnglish
Title of host publicationProceedings - 22nd International Conference on Advanced Information Networking and Applications, AINA 2008
Pages734-740
Number of pages7
DOIs
Publication statusPublished - 2008 Sep 1
Event22nd International Conference on Advanced Information Networking and Applications, AINA 2008 - Gino-wan, Okinawa, Japan
Duration: 2008 Mar 252008 Mar 28

Publication series

NameProceedings - International Conference on Advanced Information Networking and Applications, AINA
ISSN (Print)1550-445X

Other

Other22nd International Conference on Advanced Information Networking and Applications, AINA 2008
Country/TerritoryJapan
CityGino-wan, Okinawa
Period08/3/2508/3/28

ASJC Scopus subject areas

  • Engineering(all)

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