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Loss differentiation based back off strategy for correlated channels in 802.11

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Title Loss differentiation based back off strategy for correlated channels in 802.11
 
Creator PANDYA, B
MERCHANT, SN
DESAI, UB
CHAPORKAR, P
 
Description The paper proposes two schemes for contention resolution in 802.11 MAC namely modified back off strategy and estimation based back off strategy. The back off strategies provided a way to resolve contention for access to wireless channel which is continuously changing and difficult to model in a set of parameters. Differentiation between packet loss due to channel error and collision in 802.11 MAC is essential for the above two schemes to exist. Modified strategy tries to find the optimum back off period on loss due to channel error by taking the advantages of both the current strategy implemented in 802.11 MAC and the Return to Zero on channel error (ROCE) strategy. The Estimation based approach shows how by analyzing the channel for a period of time, we can predict the best back off interval in case of channel error. The aim is to maximize the throughput while being fair to all contending users. Simulation of the above two scheme suggest their superiority to the currently implemented scheme. Estimation based approach is better than other schemes for static correlated WLAN channel.
 
Publisher IEEE
 
Date 2011-10-25T17:17:23Z
2011-12-15T09:12:02Z
2011-10-25T17:17:23Z
2011-12-15T09:12:02Z
2009
 
Type Proceedings Paper
 
Identifier 2009 1ST INTERNATIONAL CONFERENCE ON WIRELESS COMMUNICATION, VEHICULAR TECHNOLOGY, INFORMATION THEORY AND AEROSPACE & ELECTRONIC SYSTEMS TECHNOLOGY, VOLS 1 AND 2,778-782
978-1-4244-4066-5
http://dspace.library.iitb.ac.in/xmlui/handle/10054/15776
http://hdl.handle.net/100/2438
 
Source 1st International Conference on Wireless Communication, Vehicular Technology, Information Theory and Aerospace and Electronic Systems Technology,Aalborg, DENMARK,MAY 17-20, 2009
 
Language English