A waiting-time dependent algorithm for initial ranging in IEEE 802.16e networks

Authors:
Jing Chi;Philippe Martins;Marceau Coupechoux
Affiliations:
ENST, CNRS LTCI, BUPT, Beijing, China;ENST, CNRS LTCI, Paris, France;ENST, CNRS LTCI, Paris, France
Venue:
WCNC'09 Proceedings of the 2009 IEEE conference on Wireless Communications & Networking Conference
Year:
2009

Citing 2
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Abstract

In this paper, a contention model for the IEEE 802.16e is first proposed to analyze the frame-based behavior of contention resolution in 802.16e network. Then a Waiting-time Dependent Increasing rate Adapted Backoff (WDIA) algorithm is proposed to improve the contention efficiency. We introduce the concept of reduced overlapping between back-off windows of contending stations and we adopt an adapted increasing rate of the back-off window. The simulation results show that the WDIA algorithm achieves better performance in terms of number of retransmissions, access delay and resource utilization.