基于认知无线电跳频蜂窝网络的集中与分布频率分配研究

2010 3rd International Symposium on Applied Sciences in Biomedical and Communication Technologies (ISABEL 2010) Pub Date : 2010-11-01 DOI:10.1109/ISABEL.2010.5702860

D. Willkomm, Wendong Hu, D. Hollós, J. Gross, A. Wolisz

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引用次数: 4

摘要

频率分配是蜂窝系统中消除多小区干扰的重要方法。在本文中，我们考虑跳频作为一种可能的频率分配方法。以IEEE 802.22为例，我们特别关注认知无线蜂窝系统作为未来非常有前途的接入技术之一。虽然这种系统的最佳频率分配在概念上很简单，但计算上很复杂，我们证明使用分布式方法会导致分配效率的显著损失。此外，我们还提出了减轻这种不利影响的方法。

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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On centralized and distributed frequency assignment in cognitive radio based frequency hopping cellular networks

Frequency Assignment is an important approach to mitigate multi-cell interference in cellular systems. In this paper, we consider frequency hopping as one possible frequency assignment approach. In particular we focus our attention on cognitive radio cellular systems as one of the very promising future access technologies, taking IEEE 802.22 as an example. While the optimal frequency assignment for such a system is conceptually straightforward as well as computationally complex, we demonstrate that usage of distributed methods leads to a significant loss of assignment efficiency. In addition, we suggest means of mitigating this adverse effect.

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2010 3rd International Symposium on Applied Sciences in Biomedical and Communication Technologies (ISABEL 2010)

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