Weighted graph coloring based softer pilot reuse for TDD massive MIMO systems

Wenson Chang, Han Wei Chan

研究成果: Conference contribution

摘要

In the massive multiple-input multiple-output (MIMO) systems, the serious pilot contamination problem severely restricts its ability to boost the spectrum utilization. To tackle this problem, the conventional concept of softly reusing the spectrum resources for the inner regions of the neighboring cells has been extended to reuse the pilot resources so as to accommodate more users. Alternatively, properly selecting the users to reuse the pilots among the neighboring cells can alleviate the pilot contamination problem as well. In this paper, we delicately integrate these two concepts to properly reuse the pilots allocated to the outer regions of the cells. By well designing the hazard-and secure-edge regions to manage the pilot reuse, the increment of interference can be effectively suppressed; and, consequently, the more accommodated users can contribute to the remarkably higher sum data rates.

原文English
主出版物標題2018 IEEE Wireless Communications and Networking Conference, WCNC 2018
發行者Institute of Electrical and Electronics Engineers Inc.
頁面1-6
頁數6
ISBN(電子)9781538617342
DOIs
出版狀態Published - 2018 六月 8
事件2018 IEEE Wireless Communications and Networking Conference, WCNC 2018 - Barcelona, Spain
持續時間: 2018 四月 152018 四月 18

出版系列

名字IEEE Wireless Communications and Networking Conference, WCNC
2018-April
ISSN(列印)1525-3511

Other

Other2018 IEEE Wireless Communications and Networking Conference, WCNC 2018
國家Spain
城市Barcelona
期間18-04-1518-04-18

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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