An asynchronous two-way relay system with full delay diversity in time-varying multipath environments

Ahmad Salim, Tolga M. Duman

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Scopus citations

Abstract

We consider design of asynchronous OFDM-based diamond two-way-relay (DTWR) systems in time-varying frequency-selective (doubly-selective) fading channels such as underwater acoustic (UWA) channels. In a DTWR channel, two users exchange their messages with the help of two relays. Most of the existing work on asynchronous DTWR systems assume only small relative propagation delays between the received signals at each node. However, in practical systems, significant delays may take place. Our proposed system is able to tolerate the delay even if it exceeds the length of the OFDM block which is almost inevitable in UWA channels. We provide analytical and numerical results to verify the advantages of the proposed scheme in mitigating large delays in different fading conditions.

Original languageEnglish (US)
Title of host publication2015 International Conference on Computing, Networking and Communications, ICNC 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages900-904
Number of pages5
ISBN (Electronic)9781479969593
DOIs
StatePublished - Mar 26 2015
Event2015 International Conference on Computing, Networking and Communications, ICNC 2015 - Garden Grove, United States
Duration: Feb 16 2015Feb 19 2015

Publication series

Name2015 International Conference on Computing, Networking and Communications, ICNC 2015

Other

Other2015 International Conference on Computing, Networking and Communications, ICNC 2015
CountryUnited States
CityGarden Grove
Period2/16/152/19/15

ASJC Scopus subject areas

  • Computer Networks and Communications

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