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首页> 外文会议>Information Sciences and Systems, 2009. CISS 2009 >Joint channel and power allocation based on user satisfaction for cognitive radio
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Joint channel and power allocation based on user satisfaction for cognitive radio

机译：基于用户满意度的认知无线电联合信道和功率分配

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摘要

The concept of spectrum sharing has received increasing interest in an attempt to alleviate the spectrum scarcity issue. In this paper, the problem of K pairs of cognitive radios sharing N available channels and its associated problem of optimal power allocation across users and channels are studied. A new metric indicating user satisfaction in both data rate and power consumption is formulated. Joint channel and power allocation algorithms are designed for both orthogonal transmission and interference transmission. These algorithms are then extended for cognitive radios equipped with multiple antennas. Numerical results demonstrate the efficiency of the proposed algorithms. The performance comparison is conducted for orthogonal and interference transmissions under different interference scenarios. The performance gains by allowing interference transmission and by using multiple antennas at transceivers are demonstrated.
机译：频谱共享的概念已受到越来越多的关注，以缓解频谱稀缺问题。本文研究了K对认知无线电共享N个可用信道的问题以及与之相关的跨用户和信道的最佳功率分配问题。制定了一个新指标，该指标指示用户在数据速率和功耗方面的满意度。联合信道和功率分配算法被设计用于正交传输和干扰传输。然后将这些算法扩展到配备多个天线的认知无线电。数值结果证明了所提算法的有效性。针对不同干扰场景下的正交传输和干扰传输进行性能比较。演示了通过允许干扰传输以及在收发器上使用多个天线来提高性能。

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