Double opportunistic transmit relaying system with GSC for power saving in Rayleigh fading channel

Author

Kim, Nam-Soo ; Lee, Ye Hoon

Author_Institution

Dept. of Comput. & Commun. Eng., Cheongju Univ., Cheongju, South Korea

fYear

2010

fDate

10-12 June 2010

Firstpage

367

Lastpage

370

Abstract

Conventional opportunistic transmit (COT) relaying system does not consider the received SNR between R-D path. For that reason, it can´t guarantee all the received SNRs exceed the threshold at destination. In this paper, we propose double opportunistic transmission relay (DOT) system which considers the received SNR both from S-R and R-D paths. It is noticed that the proposed system can be reduced to 6.9, 20.9, 32.4, and 41.4 % of power saving to that of COT relay system for K = 3, 5, 7, and 9, respectively at a given condition of P_out =1×10^-3 and γ̅_SR/Γ = 30 dB. And the performance of DOT system is superior than that of COT system for the identical number of active transmit relays under the same condition of γ̅_RD/Γ_RD.

Keywords

Rayleigh channels; diversity reception; energy conservation; COT; DOT system; GSC; R-D paths; Rayleigh fading channel; S-R paths; conventional opportunistic transmit; double opportunistic transmission relay system; generalized selection combining; power saving; received SNR; Ad hoc networks; Energy consumption; Fading; Power system modeling; Power system relaying; Protocols; Relays; Strontium; System performance; US Department of Transportation; Divesity; GSC; Opportinistic; fading; power saving;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications (COMM), 2010 8th International Conference on

Conference_Location

Bucharest

Print_ISBN

978-1-4244-6360-2

Type

conf

DOI

10.1109/ICCOMM.2010.5509028

Filename

5509028