SNR Degradation due to Carrier Frequency Offset in Amplify-and-Forward Relay System for Fading Channels

Author

Hu, Yanxing ; Jiang, Yanxiang ; You, Xiaohu

Author_Institution

Nat. Mobile Commun. Res. Lab., Southeast Univ., Nanjing, China

fYear

2009

fDate

20-23 Sept. 2009

Firstpage

1

Lastpage

4

Abstract

In this paper, we analyze signal-to-noise ratio (SNR) performance of amplify-and-forward (AF) relay system in the presence of carrier frequency offset (CFO) for fading channels. The expression for the average SNR is derived under one-relay-node scenario, and is further extended to multiple-relay-node scenario. It is shown that the SNR is very sensitive to CFO and the sensitivity of SNR to CFO is mainly determined by the power of the corresponding link channel and gain factor. The analytical results are validated through Monte Carlo simulations for both flat and frequency-selective fading channels.

Keywords

Monte Carlo methods; fading channels; Monte Carlo simulations; SNR degradation; amplify-and-forward relay system; carrier frequency offset; flat fading channels; frequency-selective fading channels; multiple-relay-node scenario; one-relay-node scenario; signal-to-noise ratio; AWGN; Degradation; Fading; Frequency; Land mobile radio; OFDM; Performance analysis; Power system relaying; Relays; Signal to noise ratio;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference Fall (VTC 2009-Fall), 2009 IEEE 70th

Conference_Location

Anchorage, AK

ISSN

1090-3038

Print_ISBN

978-1-4244-2514-3

Electronic_ISBN

1090-3038

Type

conf

DOI

10.1109/VETECF.2009.5378754

Filename

5378754