收稿日期: 2009-03-10
修回日期: 2009-04-24
网络出版日期: 2009-09-15
基金资助
国家自然科学基金(60773137, 60573112)和"863"国家科技计划(2007AA01Z297)资助
Virtual user identification based on cross-layer design in wireless Ad Hoc networks
Received date: 2009-03-10
Revised date: 2009-04-24
Online published: 2009-09-15
田珊 , 张灿 . 无线Ad Hoc网络中基于跨层设计的有效用户识别方法[J]. 中国科学院大学学报, 2009 , 26(5) : 681 -687 . DOI: 10.7523/j.issn.2095-6134.2009.5.014
A new virtual user identification method in synchronized DS-CDMA wireless Ad Hoc networks is proposed, which uses the schedule information in SEEDEX protocol in MAC layer according to cross-layer design. The receiver detects whether there are virtual users. The virtual users will be identified by the spreading code of all the nodes which are possibly transmitting packets at the time slot if there are virtual users. Otherwise the data frame will be dropped. By using this method the calculation amount is reduced, the energy of the receiver is saved, and the error rate of the receiver is reduced.
Key words： Ad Hoc networks; DS-CDMA; virtual user identification; cross-layer; SEEDEX
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