The effect of different levels of side information on the ergodic capacity in cognitive radio networks

Mohammad Robat Mili, K. Hamdi
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引用次数: 3

Abstract

In this paper, we propose several power allocation strategies in cognitive radio network in terms of spectrum sharing. In spectrum sharing, secondary users can simultaneously transmit with the primary users but must strictly control their transmit power to avoid harmful interference to primary users. In this paper, we first maximize the ergodic capacity of a secondary link with full channel side information at the secondary transmitter. Then, different levels of channel side information are separately reduced to discuss the significance of having each level at the secondary transmitter. In most cases, we derived closed-form results for evaluating the maximum capacity over Rayleigh fading channels.
不同程度的侧信息对认知无线电网络遍历能力的影响
本文从频谱共享的角度出发,提出了认知无线网络中的几种功率分配策略。在频谱共享中,辅助用户可以与主用户同时发射,但必须严格控制其发射功率,以免对主用户造成有害干扰。在本文中,我们首先最大化在二次发射机具有全信道侧信息的二次链路的遍历容量。然后,分别对不同级别的信道侧信息进行了简化,以讨论在二次发射机处具有每个级别的重要性。在大多数情况下,我们推导了封闭形式的结果来评估瑞利衰落信道上的最大容量。
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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