Performance Analysis for Multi-Antenna Small Cell Networks with Clustered Dynamic TDD

Hongguang Sun, Howard H. Yang, Xijun Wang, Chao Xu, Tony Q.S. Quek

研究成果: Conference contribution

摘要

Small cell networks with dynamic time-division duplex (D-TDD) have emerged as a potential solution to address the asymmetric traffic demands in 5G wireless networks. By allowing the dynamic adjustment of cell-specific UL/DL configuration, D-TDD flexibly allocates percentage of subframes to UL and DL transmissions to accommodate the traffic within each cell. However, the unaligned transmissions bring in extra interference which degrades the potential gain achieved by DTDD. In this work, we propose an analytical framework to study the performance of multi-antenna small cell networks with clustered D-TDD, where cell clustering is employed to mitigate the interference from opposite transmission direction in neighboring cells. With tools from stochastic geometry, we derive explicit expressions and tractable tight upper bounds for success probability and network throughput. The proposed analytical framework allows to quantify the effect of key system parameters, such as UL/DL configuration, cluster size, antenna number, and SINR threshold. Our results show the superiority of the clustered D-TDD over the traditional D-TDD, and reveal the fact that there exists an optimal cluster size for DL performance, while UL performance always benefits from a larger cluster.

原文English
主出版物標題2020 IEEE Global Communications Conference, GLOBECOM 2020 - Proceedings
發行者Institute of Electrical and Electronics Engineers Inc.
ISBN(電子)9781728182988
DOIs
出版狀態Published - 2020 十二月
事件2020 IEEE Global Communications Conference, GLOBECOM 2020 - Virtual, Taipei, Taiwan
持續時間: 2020 十二月 72020 十二月 11

出版系列

名字2020 IEEE Global Communications Conference, GLOBECOM 2020 - Proceedings
2020-January

Conference

Conference2020 IEEE Global Communications Conference, GLOBECOM 2020
國家/地區Taiwan
城市Virtual, Taipei
期間20-12-0720-12-11

All Science Journal Classification (ASJC) codes

  • 媒體技術
  • 建模與模擬
  • 儀器
  • 人工智慧
  • 電腦網路與通信
  • 硬體和架構
  • 軟體
  • 安全、風險、可靠性和品質

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