標題: Achievable Rate Analysis and Feedback Design for Multiuser MIMO Relay with Imperfect CSI
作者: Peng, Zhangjie
Xu, Wei
Wang, Li-Chun
Zhao, Chunming
電機資訊學士班
Undergraduate Honors Program of Electrical Engineering and Computer Science
關鍵字: Achievable rate;limited feedback;imperfect CSI;MIMO relay;channel estimation
公開日期: 1-Feb-2014
摘要: This paper investigates a multiuser MIMO relay downlink system with imperfect channel estimation and limited feedback. We analyze the achievable rate loss due to channel state information (CSI) mismatch arising from both channel estimation and quantization feedback. We first derive an upper bound to characterize the effect of imperfect CSI, and then present a limited feedback strategy for both the two-hop channels in the relay system. This newly presented feedback strategy reveals the relationship among the CSI quantization levels, the transmit power, and the pilots for channel estimation. An optimized pilot design at the base station and the relay is also presented by applying the derived bounds for the two-hop system.
URI: http://dx.doi.org/10.1109/TWC.2013.120313.130355
http://hdl.handle.net/11536/24043
ISSN: 1536-1276
DOI: 10.1109/TWC.2013.120313.130355
期刊: IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS
Volume: 13
Issue: 2
起始頁: 780
結束頁: 793
Appears in Collections:Articles


Files in This Item:

  1. 000332487700016.pdf

If it is a zip file, please download the file and unzip it, then open index.html in a browser to view the full text content.