Abstract
Multiple Accesses Broadcasting (MABC) is a spectral efficient protocol in two-way relay channel (TWRC). The drawback of this protocol in decode-and-forward (DF) mode is decoding complexity at the relay's side. Erroneous decoding at the relay can bring about error propagation that leads to performance degradation in all of the relay networks operating in the DF mode. In this paper, we propose ML detection at the multiple antenna relay. With analytical investigation, we prove that this decoding rule can achieve full diversity order at the MAC phase of the MABC protocol. Then, we propose a new beamforming algorithm named as “Channel Alignment” and show that the proposed algorithm will result in better performance compared with the well-known MAX-MIN antenna selection method while it has full diversity order at the BC phase of the MABC protocol. The analytical results are verified through simulations and the performance of our proposed method is also compared with another method.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
