Normal graphs for downlink multiuser MIMO scheduling

Jung Chieh Chen, Cheng Hsuan Wu, Chao Kai Wen, Yao Nan Lee, Hsin Yi Lu, Pangan Ting

研究成果: Conference contribution

摘要

Inspired by the success of the low-density parity-check (LDPC) codes in the field of error-control coding, in this paper we propose transforming the downlink multiuser multiple-input multiple-output scheduling problem into an LDPC-like problem using the normal graph. Based on the normal graph framework, soft information, which indicates the probability that each user will be scheduled to transmit packets at the access point through a specified angle-frequency sub-channel, is exchanged among the local processors to iteratively optimize the multiuser transmission schedule. Computer simulations show that the proposed algorithm can efficiently schedule simultaneous multiuser transmission which then increases the overall channel utilization and reduces the average packet delay.1

原文English
主出版物標題ICC 2008 - IEEE International Conference on Communications, Proceedings
頁面3511-3515
頁數5
DOIs
出版狀態Published - 2008
事件IEEE International Conference on Communications, ICC 2008 - Beijing, China
持續時間: 2008 5月 192008 5月 23

出版系列

名字IEEE International Conference on Communications
ISSN(列印)0536-1486

Other

OtherIEEE International Conference on Communications, ICC 2008
國家/地區China
城市Beijing
期間08-05-1908-05-23

All Science Journal Classification (ASJC) codes

  • 電腦網路與通信
  • 電氣與電子工程

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