Asymptotic performance of dual-hop non-regenerative cooperative systems with or without direct path

Author

Smiljkovic, Katerina ; Hadzi-Velkov, Zoran

Author_Institution

Fac. of Electr. Eng. & Inf. Technol., Ss. Cyril & Methodius Univ., Skopje, Macedonia

fYear

2011

fDate

6-9 Nov. 2011

Firstpage

422

Lastpage

426

Abstract

We derive simple asymptotic expressions for the outage probability (OP) and the average error probability (AEP) of dual-hop fixed-gain amplify-and-forward relaying system with or without direct path in a Rayleigh fading environment and high signal-to-noise ration (SNR). We show that, when direct path is not utilized, both OP and EP decay as log(SNR)/SNR, whereas, when the direct path is utilized, OP and EP decay as log(SNR)/SNR² at high SNRs.

Keywords

Rayleigh channels; amplify and forward communication; cooperative communication; probability; Rayleigh fading environment; SNR; asymptotic performance; average error probability; dual-hop fixed-gain amplify-and-forward relaying system; dual-hop nonregenerative cooperative systems; outage probability; signal-to-noise ration; Approximation methods; Diversity methods; Diversity reception; Fading; Relays; Signal to noise ratio; Wireless communication; Outage probability; Rayleigh fading; diversity order; error probability;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communication Systems (ISWCS), 2011 8th International Symposium on

Conference_Location

Aachen

ISSN

2154-0217

Print_ISBN

978-1-61284-403-9

Electronic_ISBN

2154-0217

Type

conf

DOI

10.1109/ISWCS.2011.6125396

Filename

6125396