A Cooperative Coding Scheme Based on OFDM System

Author

Wang, Chaowei ; Li, Lihua ; Xu, Yongtai ; Wang, Dajian

Author_Institution

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

fYear

2009

fDate

24-26 Sept. 2009

Firstpage

1

Lastpage

4

Abstract

In this paper, a relay cooperative scheme is proposed for cellular OFDM system. In the scheme, mobile station (MS) reorganizes and recombines the bits stream, and base station (BS) combines the signals from the two independent paths, direct and relay links; at the relay, signals are redesigned. And two relay modes are provided for different scenarios. Furthermore, a supplementary strategy of sub-carriers re-allocation is proposed to enhance the system. Finally, numerical simulation results show that the proposed scheme achieves transmit diversity and improves system performance.

Keywords

OFDM modulation; cellular radio; diversity reception; encoding; base station; cellular OFDM system; cooperative coding scheme; mobile station; relay cooperative scheme; relay link; subcarrier reallocation; transmit diversity; Chaotic communication; Cooperative systems; Fading; Iterative decoding; Laboratories; OFDM; Relays; Signal processing; Turbo codes; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications, Networking and Mobile Computing, 2009. WiCom '09. 5th International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4244-3692-7

Electronic_ISBN

978-1-4244-3693-4

Type

conf

DOI

10.1109/WICOM.2009.5303271

Filename

5303271