Noncoherent relay selection for bidirectional cooperative networks

Mehdi Seyfi, Sami Muhaidat, Jie Liang, Theodoros A. Tsiftsis

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

3 Citations (Scopus)


In this paper we propose a new noncoherent relay selection strategy for two-way relay cooperative networks. In our proposed scenario, channel state information (CSI) or feedback link is not needed, neither for relay selection nor for data detection. We assume Mary frequency shift keying (FSK) modulation for our transmission scheme and decode-and-forward (DF) protocol for our system relaying method. Relay selection is performed based on a min-max criterion on the received instantaneous signal energies at the relay nodes. Furthermore, by using energy detectors at both destination nodes the transmitted signal is decoded. We present a closed-form formula for the average symbol error rate (ASER) of the proposed noncoherent selection method. We also provide high signal-to-noise-ratio (SNR) analysis and the achievable diversity order for the proposed selection method. Finally we present a simulation study to corroborate the analytical results and to demonstrate the performance of the introduced noncoherent selection method.

Original languageEnglish
Title of host publication2012 IEEE Globecom Workshops, GC Wkshps 2012
Number of pages6
Publication statusPublished - Dec 1 2012
Event2012 IEEE Globecom Workshops, GC Wkshps 2012 - Anaheim, CA, United States
Duration: Dec 3 2012Dec 7 2012

Publication series

Name2012 IEEE Globecom Workshops, GC Wkshps 2012


Other2012 IEEE Globecom Workshops, GC Wkshps 2012
CountryUnited States
CityAnaheim, CA


  • Noncoherent relay selection
  • average symbol error rate
  • cooperative communication
  • relay selection

ASJC Scopus subject areas

  • Computer Networks and Communications

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