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Distributed power allocation for spectrum sharing in mutually interfering wireless systems

机译：相互干扰的无线系统中用于频谱共享的分布式功率分配

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摘要

Allocation of transmit power is critical for spectrum sharing and coexistence of mutually interfering wireless systems. In this paper we present a novel approach for allocation of transmit power, which is based on a non-greedy procedure that aims at maximizing transmission rate while also controlling interference levels. The proposed approach is fully distributed and requires no central control or coordination. Numerical results obtained from simulations are presented to illustrate the performance of the proposed approach in both sparse and dense environments. In sparse wireless environments, where there are fewer mutually interfering wireless links than available frequency bands, the proposed approach yields power allocations which outperform those obtained by applying alternative power allocation strategies, while in dense environments, where there are more interfering links than available frequency bands, the proposed approach yields power allocations with performance similar to those of existing power strategies. Thus, the distributed power allocation procedure based on the proposed approach is a drop-in replacement algorithm that yields better system throughput than existing algorithms for spectrum sharing.
机译：发射功率的分配对于频谱共享和相互干扰的无线系统的共存至关重要。在本文中，我们提出了一种新颖的发送功率分配方法，该方法基于一种非贪心过程，旨在最大化传输速率，同时控制干扰水平。所提出的方法是完全分布式的，不需要中央控制或协调。通过仿真获得的数值结果表明了该方法在稀疏和密集环境中的性能。在稀疏的无线环境中，相互干扰的无线链路少于可用频带，建议的方法产生的功率分配要优于通过应用替代功率分配策略获得的功率分配；而在密集的环境中，干扰链路比可用频带更多的功率分配，提出的方法产生的功率分配的性能与现有功率策略的功率分配相似。因此，基于所提出的方法的分布式功率分配过程是一种直接插入替换算法，与现有的频谱共享算法相比，该算法产生更好的系统吞吐量。

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