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首页> 外文期刊>Wireless Communications Letters, IEEE >Area Energy Efficiency of Antenna Selection in Limited Feedback Device-to-Device Networks
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Area Energy Efficiency of Antenna Selection in Limited Feedback Device-to-Device Networks

机译:有限反馈设备间网络中天线选择的区域能效

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摘要

We analyze the area energy efficiency of a device-to-device communication network with limited feedback employing antenna selection (AS). By considering that devices are distributed according to a homogeneous Poisson point process, we derive expressions for the AS and an MIMO beamforming (BF) scheme, used as a performance benchmark. Numerical results show that AS is more energy efficient for shorter transmission distances, even if BF employs a theoretically infinite number of feedback bits. On the other hand, BF outperforms AS in terms of spectral efficiency, even using the same number of feedback bits.
机译:我们使用天线选择(AS)分析具有有限反馈的设备到设备通信网络的区域能效。通过考虑根据均匀泊松点过程分配设备,我们导出了用于AS和MIMO波束成形(BF)方案的表达式,用作性能基准。数值结果表明,即使BF使用理论上无限数量的反馈位,对于较短的传输距离,AS还是更节能的。另一方面,即使在使用相同数量的反馈比特的情况下,BF在频谱效率方面也优于AS。

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