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A Throughput Comparison Based on S-ALOHA between Ad Hoc and Centrally Controlled CDMA Systems

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3 Author(s)
Zhang Jian-wu ; College of Communication Engineering, University of Hangzhou Dianzi, Hangzhou, Zhejiang Province, China 310018. ; Chen Ye-fan ; He Rui

The paper compared the throughput of ad hoc CDMA WLAN systems with centrally controlled WLAN systems, which used the same S-ALOHA random access protocol. Given the same finite users, packets arrival rate and the retransmission probability, we studied the two types of systems' throughput by constructing similar Markov chains. Furthermore, we evaluated the influence of the spreading gain and error control coding on the throughput and normalized throughput. The efficiency of bandwidth utilization was also investigated by normalizing the system performance

Published in:

Industrial Electronics and Applications, 2006 1ST IEEE Conference on

Date of Conference:

24-26 May 2006