Energy-efficient cooperative diversity with incremental relaying

Author

Chau, Yawgeng A. ; Al-Harbawi, Mostafa

Author_Institution

Dept. of Commun. Eng., Yuan-Ze Univ., Chungli, Taiwan

fYear

2013

fDate

24-27 June 2013

Firstpage

1

Lastpage

5

Abstract

Based on switched relays, an energy-efficient cooperative diversity scheme is addressed and its performance is analyzed. With switched relays, relying is only used when the signal-to-noise ratio (SNR) of the source-to-destination (SD) channel is lower than a preset threshold, and in addition, an activated relay will further process the received source signal only if the transmission over its source-to-relay (SR) channel also has a satisfied signal-to-noise ratio (SNR), which will save relay-processing resource including the relay energy for transmitting the SR data over relay-to-destination (RD) channels. Both decode-and-forward (DF) and amplify-and-forward (A F) relaying policies are considered. The outage probability and the bit error probability (BER) of BPSK signaling on independent and identically distributed (i.i.d.) Rayleigh fading channels are derived. Numerical results are presented for performance illustrations.

Keywords

Rayleigh channels; amplify and forward communication; cooperative communication; decode and forward communication; diversity reception; error statistics; phase shift keying; relay networks (telecommunication); telecommunication switching; AF relaying policy; BER; BPSK signaling; DF relaying policy; RD channel; SD channel; SNR; amplify-and-forward relaying policy; bit error probability; decode-and-forward relaying policy; energy-efficient cooperative diversity scheme; iid Rayleigh fading channels; incremental relaying; outage probability; received source signal; relay energy; relay-processing resource; relay-to-destination channel; signal-to-noise ratio; source-to-destination channel; source-to-relay channel; switched relays; Legged locomotion; Switches; amplify-and-forward; decode-and-forward; energy-efficient; switched cooperative diversity; switched relay;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Personal Multimedia Communications (WPMC), 2013 16th International Symposium on

Conference_Location

Atlantic City, NJ

ISSN

1347-6890

Type

conf

Filename

6618610