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Competitive Unlicensed Spectrum Sharing with Partial Information on Slow Fading Channels

机译:在慢衰落信道上具有部分信息的竞争性非授权频谱共享

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We consider a slow fading multiuser environment with primary and secondary users. The secondary users have only partial knowledge of the channel and are subjected to transmitted power constraints by the primary users. Their communications are intrinsically affected by outage events. We propose and analyze two algorithms for joint rate and power allocation. In one algorithm, the secondary transmitters cooperate to maximizing a common utility function accounting for the total throughput of the network. In a second approach based on a game framework, the secondary users aim at maximizing selfishly their own utilities. The latter approach shows better fairness properties at the expenses of some global performance loss compared to the optimum cooperative approach.
机译:我们考虑具有主要和次要用户的慢速衰落多用户环境。次要用户仅具有部分信道知识,并且受到主要用户的发射功率约束。他们的通信从本质上受到中断事件的影响。我们提出并分析了两种联合速率和功率分配算法。在一种算法中,辅助发射机合作以最大化考虑网络总吞吐量的通用效用函数。在基于游戏框架的第二种方法中,次要用户旨在自私地最大化自己的实用程序。与最佳协作方法相比,后一种方法显示出更好的公平性,但会牺牲一些全局性能。

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