认知无线电系统中一种新的接入算法

2008 IEEE International Symposium on Knowledge Acquisition and Modeling Workshop Pub Date : 2008-12-01 DOI:10.1109/KAMW.2008.4810427

Hua Hou, Zhihua Li, Pei Sun

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引用次数: 0

摘要

提出了一种新的认知无线电系统接入算法，该算法能有效地降低主用户的接入延迟，保证主用户和从用户之间的接入吞吐量公平性。在时域上，主用户采用1-持久访问策略，从用户采用指数回退重传策略;在频域上，主用户选择若干合适的子载波作为接入信道，辅助用户只选择干扰温度最小的子载波作为接入信道。仿真结果验证了该算法的良好性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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A New Access Algorithm in Cognitive Radio Systems

A new access algorithm in cognitive radio systems is proposed inthis paper, which can decrease primary users' access delay effectively and guarantee the access throughput fairness among primary users and secondary users. In the time domain, primary users apply 1-persisten access policy and secondary users apply exponential backoff retransmission policy; while in the frequency domain primary users select several suitable subcarriers as access channels and secondary users select only the subcarrier with the least interference temperature as access channel. Simulations confirm the perfect performance of the proposed algorithm.

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2008 IEEE International Symposium on Knowledge Acquisition and Modeling Workshop

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