Mixed Transmission for MIMO Relay Channels with Limited Feedback Precoding

Author

Guangming, Xu ; Weikang, Zhu ; Min, Dai ; Jianwei, He ; Xinbin, Fang

Author_Institution

Maritime Telemetry & Telecontrol Dept., China Satellite, Jiangyin, China

Volume

2

fYear

2009

fDate

25-26 July 2009

Firstpage

358

Lastpage

360

Abstract

A novel transmission scheme that mixes half-duplex decode-and-forward cooperative relay transmission (RT) with direct transmission (DT) is proposed for multiple-input multiple-output (MIMO) relay channels. To support limited feedback precoding for DT and RT, a precoder codebook is presented where each codeword can be transformed into a new codeword of different dimension. This allows varying number of spatial substreams and resource allocation. Simulation results show significant average capacity gains of the proposed scheme over pure DT scheme and pure RT scheme.

Keywords

MIMO communication; channel capacity; channel coding; decoding; diversity reception; feedback; precoding; wireless channels; MIMO relay channel; channel capacity; direct transmission; half-duplex decode-and-forward cooperative relay transmission; limited feedback precoding; multiple-input multiple-output communication; resource allocation; spatial substream; Channel capacity; Computer science; Decoding; Feedback; Helium; Information technology; MIMO; Relays; Resource management; Switches; MIMO relay channel; capacity; limited feedback precoding; resource allocation;

fLanguage

English

Publisher

ieee

Conference_Titel

Information Technology and Computer Science, 2009. ITCS 2009. International Conference on

Conference_Location

Kiev

Print_ISBN

978-0-7695-3688-0

Type

conf

DOI

10.1109/ITCS.2009.210

Filename

5190253