干扰限制网络中的多小区机会波束形成

M. Wang, Tharaka Samarasinghe, J. Evans
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引用次数: 2

摘要

本文考虑了一种基于经典机会波束形成和调度方案的蜂窝网络。在多小区网络中,与噪声相比,干扰是影响通信速率的主要瓶颈。在本文中,我们重点推导了考虑干扰限制区域(即高信噪比区域)的感兴趣系统的遍历下行链路和速率缩放律。更具体地说,通过推导sum-rate的矩生成函数,我们表明,遍历下行sum-rate尺度对数随着用户数量的增长。由于干扰限制的假设,这一结果不同于众所周知的随用户数量增加的双对数和速率增长。最后,还给出了数值结果来验证我们的分析并提供进一步的见解。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Multi-cell opportunistic beamforming in interference-limited networks
In this paper, we consider a cellular network operating according to the classical opportunistic beamforming and scheduling scheme. In a multi-cell network, interference is the main bottleneck on the communication rate, compared to noise. In this paper, we focus on deriving the ergodic downlink sum-rate scaling law for the system of interest considering an interference-limited regime (i.e., the high SNR region). More specifically, through deriving the moment generating function of the sum-rate, we show that the ergodic downlink sum-rate scales logarithmically as the number of users grows large. This result is different from the well-known double logarithmic sum-rate growth with increasing number of users due to the interference-limited assumption. Finally, numerical results are also presented to validate our analysis and provide further insights.
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