Author
Karakaya, B., Sökün, Hamza Ümit, Uysal, Murat, Hasna, M.O.
Publication Date
2012
Publication Place
-
IEEE
Subject
Monte Carlo methods, OFDM modulation, Amplify and forward communication, Cooperative communication, Underwater acoustic communication
Type
Document
Language
Turkish
Digital
Yes
Manuscript
No
Library
Özyeğin University
Library Asset ID
978-1-4673-0055-1
Record ID
7e78c3c7-c744-4d1a-84c8-36495b6bf20a
Library Location
Electrical & Electronics Engineering
Date
2012
Notes
Due to copyright restrictions, the access to the full text of this article is only available via subscription.
Sample Text
In this paper, we investigate a multi-carrier multi-relay cooperative system with amplify-and-forward relaying over frequency-selective underwater acoustic channels. Relay selection rules rely on the maximization of signal-to-noise ratio (SNR). We basically use two distinct relay selection schemes; one bases on SNR-summation and the other bases on selecting the relay which gives the best SNR among chosen the worst SNRs of all subcarriers in each relay (best of worst). These are used in conjunction with so-called per-subcarrier, all-subcarriers or subcarrier grouping approaches in which one or more relays are selected. We present an extensive Monte Carlo simulation study to evaluate the error rate performance of the UWAC system with different relay selection schemes under consideration and point out differences with terrestrial radio-frequency (RF) systems.Our simulation results indicate that although SNR summation relay selection rule performs slightly better than best of worst relay selection rule for all subcarrier basis approach, best of worst scheme can extract the diversity gain for subcarrier grouping basis approach.
DOI
10.1109/SIU.2012.6204816
