TDD大规模MIMO系统的试验性污染缓解

2017 IEEE International Black Sea Conference on Communications and Networking (BlackSeaCom) Pub Date : 2017-06-01 DOI:10.1109/BlackSeaCom.2017.8277658

Makram Alkhaled, E. Alsusa, Ammar Hadi, A. Alfitouri

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引用次数: 4

摘要

与传统的MIMO系统相比，大规模多输入多输出(MIMO)系统有望在能量和频谱效率方面取得显著的进步。然而，这些有希望的增益受到TDD多单元大规模MIMO中导频污染的影响。本文讨论了如何解决导频污染问题，并提出了一种导频序列分配算法。该算法利用导频序列的多重性来降低导频污染的影响。结果表明，与传统的导频分配算法相比，该算法可以显著提高频谱效率。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Pilot contamination mitigation in TDD massive MIMO systems

Massive multiple-input multiple-output (MIMO) systems are expected to achieve significant gains in both energy and spectral efficiency compared to conventional MIMO systems. However, these promising gains are limited by the impact of pilot contamination in TDD multicell massive MIMO. In this paper we address how to counter the problem of pilot contamination and propose an algorithm for pilot sequences allocation. The proposed algorithm takes advantage of the multiplicity of pilot sequences over the number of users in each cell to reduce the effect of pilot contamination. Our results show that the algorithm can significantly improve the spectral efficiency compared to the conventional pilot allocation algorithm.

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来源期刊

2017 IEEE International Black Sea Conference on Communications and Networking (BlackSeaCom)

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