NDLI: A congestion-aware access control mechanism in wireless networks

Content Provider	IEEE Xplore Digital Library
Author	Yanbing Liu Haiyan Zheng Jin Zhao
Copyright Year	2010
Description	Author affiliation: Key Laboratory of Mobile Internet Technology, Chongqing University of Posts and Telecommunications, China (Yanbing Liu; Haiyan Zheng; Jin Zhao)
Abstract	In standard access control mechanism, contention window is designed according to the number of collision, and ignoring the current congestion information in the network. Consequently, terminal cannot adjust the contention window timely according to the current network load. In order to solve this problem, slot utilization and the probability g are proposed in this paper to estimate the network congestion information. Then the back-off algorithm in standard protocol is improved and a novel P-probability access control mechanism (PACM) is proposed to improve the distributed access control mechanism which is aware of congestion state in 3G wireless networks. In PACM, the network congestion information is applied to basic access control, which assigns the contention window after sending data frames. Simulation results show that the probability of frame collision may fall and the throughput of the whole 3G networks can be enhanced.
Starting Page	477
Ending Page	482
File Size	785819
Page Count	6
File Format	PDF
ISBN	9781424467693
e-ISBN	9781424467723
DOI	10.1109/ICBNMT.2010.5705136
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-10-26
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	3G wireless networks Congestion information Spread spectrum communication Access control mechanism
Content Type	Text
Resource Type	Article

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