arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2003.02940cs.ITeess.SPmath.IT
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具有无线电条带和顺序上行链路处理的无小区大规模MIMO

Cell-Free Massive MIMO With Radio Stripes and Sequential Uplink Processing

Zakir Hussain Shaik, Emil Björnson, Erik G. Larsson

摘要:

与传统MIMO技术相比,无小区大规模MIMO(mMIMO)具有高频谱效率和优越的空间分集,被设想为超越5G的下一代技术。其主要原理是许多分布式接入点(AP)合作,同时为网络中的所有用户提供服务,而无需创建小区边界。本文考虑了一个无小区的mMIMO系统的上行链路利用无线条带网络架构。提出了一种新的归一化线性最小均方误差(N-LMMSE)合并的序列处理算法。该算法能够在无小区MMO中实现干扰抑制,同时保持低成本和前向回传要求。计算并分析了该算法的频谱效率。我们的结论是,它提供了一个有吸引力的低前向回程要求和高频谱效率之间的权衡。

英文摘要:

Cell-free Massive MIMO (mMIMO) is envisaged to be a next-generation technology beyond 5G with its high spectral efficiency and superior spatial diversity as compared to that of conventional MIMO technology. The main principle is that many distributed access points (APs) cooperate to simultaneously serve all the users within the network without creating cell boundaries. This paper considers the uplink of a cell-free mMIMO system utilizing the radio stripe network architecture. We propose a novel sequential processing algorithm with normalized linear minimum mean square error (N-LMMSE) combining at every. This algorithm enables interference suppression in cell-free MMO while keeping the cost and front-haul requirements low. The spectral efficiency of the proposed algorithm is computed and analyzed. We conclude that it provides an attractive trade-off between low front-haul requirements and high spectral efficiency.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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