多径衰落信道中认知超宽带频谱共享与功率分配

2011 11th International Symposium on Communications & Information Technologies (ISCIT) Pub Date : 2011-12-01 DOI:10.1109/ISCIT.2011.6092158

Ruofan Jin, D. Grace, P. Mitchell

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引用次数: 1

摘要

本文研究了一种全分布式超宽带(UWB)系统的认知功率分配方案。我们证明了高度受限的频谱功率密度和多用户干扰可以通过基于游戏的解决方案得到缓解。研究了超宽带频率选择性衰落对我们的认知功率分配方案的影响，并将我们的方案与现有的迭代注水技术进行了比较。结果表明，在UWB衰落信道中，我们提出的功率分配方案的功率效率等于或高于迭代注水技术，同时收敛速度也明显加快。

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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Cognitive UWB spectrum sharing and power allocation in a multipath fading channel

In this paper we study a cognitive power allocation scheme for a fully distributed Ultra Wide Band (UWB) system. We show that the highly restricted spectrum power density and multi-user interference can be mitigated by means of a game based solution. The impact of UWB frequency selective fading on our cognitive power allocation scheme is examined and we compare our scheme with the existing iterative water filling technique. The results show that our proposed power allocation scheme is equal to or more power efficient than the iterative water filling technique in a UWB fading channel, while also converging significantly faster.

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2011 11th International Symposium on Communications & Information Technologies (ISCIT)

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