NDLI: Performance Analysis of IEEE 802.16 Multicast and Broadcast Polling based Bandwidth Request

Content Provider	IEEE Xplore Digital Library
Author	Lidong Lin Weijia Jia Wenyan Lu
Copyright Year	2007
Description	Author affiliation: Dept. of Comput. Sci., City Univ. of Hong Kong, Kowloon (Lidong Lin; Weijia Jia; Wenyan Lu)
Abstract	Recently, IEEE has standardized the 802.16 protocol for wireless metropolitan area networks. In the point-to-multipoint (PMP) mode of the medium access control (MAC), the subscriber stations (SSs) request bandwidth based upon unicast, multicast and broadcast polling by the base station (BS). Polling is the process by which the BS allocates to the SSs bandwidth specifically for the purpose of making bandwidth requests. The SSs contend for the transmission opportunities which are allocated by the BS when they want to transmit the bandwidth request. Generally speaking, the contention intensity heavily influences the network performance. However, no attention is paid to investigate the impact of the system parameters to the utilization of transmission opportunity. This paper provides a simple, but nevertheless accurate, analytical model to compute the utilization of transmission opportunity, in the assumption of finite number of subscriber stations and ideal channel conditions. The proposed analysis applies to multicast and broadcast polling mechanisms. The analytical results match with the simulation results very well and the performance evaluation reveals that the utilization of transmission opportunity mainly depends on the initial contention window size, the network size and the average number of transmission opportunities in one frame. The simulation data also show that multicast polling can achieve higher utilization than broadcast polling especially when the network size is large.
Starting Page	1854
Ending Page	1859
File Size	374825
Page Count	6
File Format	PDF
ISBN	1424406587
ISSN	15253511
DOI	10.1109/WCNC.2007.348
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-03-11
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Performance analysis Broadcasting Bandwidth Analytical models Wireless application protocol Access protocols Wireless LAN Metropolitan area networks Portable media players Media Access Protocol
Content Type	Text
Resource Type	Article

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