A spectrum-efficient broadcast scheme based on network coding in cellular MIMO systems

Author

Zhongyuan Zhao ; Zhiguo Ding ; Bin Han ; Xinqian Xie ; Wenbo Wang ; Mugen Peng

Author_Institution

Key Lab. of Universal Wireless Commun., Beijing Univ. of Posts & Telecommun., Beijing, China

fYear

2013

fDate

7-10 April 2013

Firstpage

1387

Lastpage

1391

Abstract

In this paper, a network coding broadcast (NC-BC) scheme is proposed to improve the spectral efficiency for multipleinput and multiple-output (MIMO) transmissions. Particularly by network coding the base station broadcast message with each user message respectively, NC-BC can save the radio resource allocated for base station broadcasting, which is necessary in conventional time division-based scheme. Moreover, the iterative precoding design for NC-BC is studied for approaching the optimal performance, and the sub-optimal precoding design with low complexity is also provided. The simulation results show that the proposed NC-BC scheme with precoding optimization can further improve the system transmission performance.

Keywords

MIMO communication; broadcast communication; cellular radio; iterative decoding; network coding; radio spectrum management; resource allocation; time division multiplexing; NC-BC scheme; base station broadcast message; base station broadcasting; cellular MIMO systems; iterative precoding design; multiple-input-and-multiple-output transmissions; network coding broadcast scheme; radio resource allocation; spectral efficiency improvement; spectrum-efficient broadcast scheme; suboptimal precoding design; system transmission performance improvement; time division-based scheme; Bit error rate; MIMO; Network coding; Optimization; Phase shift keying; Resource management; Vectors;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications and Networking Conference (WCNC), 2013 IEEE

Conference_Location

Shanghai

ISSN

1525-3511

Print_ISBN

978-1-4673-5938-2

Electronic_ISBN

1525-3511

Type

conf

DOI

10.1109/WCNC.2013.6554766

Filename

6554766