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AuthorKarakaya B.
AuthorSökün, Hamza Ümit
AuthorUysal M.
AuthorHasna , Mazen
Available date2022-04-26T11:06:55Z
Publication Date2012
Publication Name2012 20th Signal Processing and Communications Applications Conference, SIU 2012, Proceedings
ResourceScopus
Identifierhttp://dx.doi.org/10.1109/SIU.2012.6204816
URIhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-84863450239&doi=10.1109%2fSIU.2012.6204816&partnerID=40&md5=6337dc170a44316d90217f8c2a8bfa71
URIhttp://hdl.handle.net/10576/30533
AbstractIn 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 allsubcarriers 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.
Languageen
PublisherIEEE
SubjectAmplify-and-forward relaying
Cooperative systems
Cooperative-ofdm
Diversity gain
Error rate performance
Frequency-selective
Monte Carlo Simulation
Multi carrier
Multi relays
Radio frequencies
Relay selection
Signaltonoise ratio (SNR)
Subcarrier
Underwater acoustic channels
Monte Carlo methods
Signal processing
Telecommunication repeaters
Telecommunication systems
Orthogonal frequency division multiplexing
TitleCooperative OFDM systems for UWAC with SNR-based relay selection schemes
TypeConference Paper
dc.accessType Abstract Only


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