摘要
该文研究在阵列域大尺度衰落模型下,基站端天线仅仅配备了1-bit精度的模数转换器时大规模MIMO系统的性能。首先给出了系统采用最大比合并接收机时,用户上行可达速率的闭式表达式。然后分析了1-bit系统的功率效率性能,并将该1-bit系统与传统的具有无穷精度模数转换器的系统性能相比较。通过计算机仿真验证了该文的分析结果。该文指出基站端可以安装更多的天线来弥补1-bit精度的模数转换器所造成的性能损失。
Based on the large scale fading channel model in antenna-array domain, this paper investigates the uplink performance for a massive MIMO system, where each antenna is equipped with one-bit Analog4o-Digital Converters (ADCs). A closed-form expression for the uplink achievable rate with Maximum Ratio Combining (MRC) receiver is derived, and the power efficiency performance, as well as the comparison between the one-bit systems and the conventional system with infinite resolution ADCs are investigated. Numerical results are presented to verify the analytical results.
出处
《电子与信息学报》
EI
CSCD
北大核心
2017年第6期1515-1519,共5页
Journal of Electronics & Information Technology
基金
北京市科技新星计划(Z161100004916068)
中央高校基本科研业务费专项资金(2017JBM306)
国家自然科学基金(61471027)
东南大学移动通信国家重点实验室开放研究基金(2014D05
2017D01)
北京市自然科学基金(4152043)~~