认知无线电中二级用户主导的信道预留

2010 2nd IEEE InternationalConference on Network Infrastructure and Digital Content Pub Date : 2010-12-06 DOI:10.1109/ICNIDC.2010.5659457

Shoufeng Wang, Fan Li, Weidong Wang, Ben Wang, Yinghai Zhang

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引用次数: 4

摘要

信道保留是为了降低频谱切换引起的二次用户掉包率。研究了一个辅助系统与多个主系统共存时保留信道的维护问题。提出了基于马尔可夫模型的全局信道保留方案、用户信道保留方案和用户更新信道保留方案。数值结果表明，全局信道保留方案比用户更新/用户信道保留方案具有更高的吞吐量，而用户更新信道保留方案在三种方案中丢包率最低。

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Secondary user dominated channel reservation in Cognitive Radio

Channel reservation is used to decrease the drop ratio of secondary users caused by spectrum handover. This paper considers the maintainer of the reserved channels in one secondary system coexisting with multiple primary systems. The global channel reservation scheme, the user channel reservation scheme, and the user-updated channel reservation scheme are proposed, derived by different Markov models. Numerical results show that the global channel reservation scheme performs higher throughput than the user-updated/user channel reservation schemes, while the user-updated channel reservation scheme gains the lowest drop ratio among the three schemes.

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2010 2nd IEEE InternationalConference on Network Infrastructure and Digital Content

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