A forwarding scheme by superposition coding for wireless relaying

Author

Liu, Yang ; Peng, Mugen ; Wang, Wenbo

Author_Institution

Wireless Signal Process. & Network Lab., Beijing Univ. of Posts & Telecommun., Beijing, China

fYear

2009

fDate

13-16 Sept. 2009

Firstpage

1367

Lastpage

1370

Abstract

We propose a forwarding scheme by superposition coding for wireless relaying, in which a relay will not forward a message to a destination if the destination has successfully decoded the message directly from a source. In our scheme, flag signal and data signal are superimposed and transmitted by the source, and according to whether the flag signal has been successfully decoded by the relay, the relay can determine whether to forward the data signal to the destination. Numerical results show that our scheme can outperform classical decode-and-forward cooperation scheme in terms of spectral efficiency and outage probability.

Keywords

encoding; wireless channels; data signal; decode- and-forward cooperation scheme; decoding; flag signal; forwarding scheme; outage probability; spectral efficiency; superposition coding; wireless relaying; Bandwidth; Broadcasting; Communications technology; Data communication; Decoding; Gaussian noise; Laboratories; Power system relaying; Relays; Signal processing;

fLanguage

English

Publisher

ieee

Conference_Titel

Personal, Indoor and Mobile Radio Communications, 2009 IEEE 20th International Symposium on

Conference_Location

Tokyo

Print_ISBN

978-1-4244-5122-7

Electronic_ISBN

978-1-4244-5123-4

Type

conf

DOI

10.1109/PIMRC.2009.5449767

Filename

5449767