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首页> 外文会议>IEEE Vehicular Technology Conference >Adaptive SINR threshold allocation for joint power control and beamforming over wireless networks
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Adaptive SINR threshold allocation for joint power control and beamforming over wireless networks

机译：用于联合功率控制和无线网络波束成形的自适应SINR阈值分配

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Cochannel interference is one of the main impairments that degrade the performance of a wireless link. Power control and antenna beamforming are two approaches for improving the performance in wireless networks by appropriately controlling the cochannel interference. Joint optimal beamforming and power control scheme has been considered in previous work. It has been shown that the scheme can reduce the total transmitted power and increase the maximum number of allowable users or maximum achievable Signal-to-Interference-Noise-Ratio (SINR) in wireless networks. However previous scheme only works well in low SINR situation. In higher SINR situation, the total transmitted power is much higher than necessary. When required SINR is higher than a specific value, there are no feasible solutions for power allocation. This problem is caused by the assumption that every mobile user has fixed and the same SINR requirement (threshold). In this paper, we introduce a novel adaptive SINR threshold allocation scheme with joint power control and antenna beamforming that can overcome the problems and work in the real wireless communication conditions. From simulation results, we can see that our scheme reduce 60 percent of overall transmitted power and increase working area of joint power control and beamforming by 4 dB.
机译：Cochannel干扰是降低无线链路性能的主要障碍之一。功率控制和天线波束成形是通过适当控制Cochannel干扰来提高无线网络中性能的两种方法。在以前的工作中考虑了联合最佳波束成形和功率控制方案。已经表明，该方案可以减少总传输功率并增加无线网络中的允许用户的最大数量或最大可实现的信号到干扰 - 比率（SINR）。然而，以前的计划在低SINR情况下工作良好。在较高的SINR情况下，总传输功率远高于必要的。当需要SINR高于特定值时，没有可行的功率分配解决方案。这个问题是由假设每个移动用户固定和相同的SINR要求（阈值）引起的。在本文中，我们介绍了一种具有联合功率控制和天线波束形成的新型自适应SINR阈值分配方案，其可以克服真实无线通信条件中的问题和工作。从仿真结果中，我们的计划可以看到我们的方案减少了60％的总传输功率，并增加了接合功率控制的工作区域和4 dB的波束成形。

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