Title :
Space full-duplex max-max relay selection for relays with buffers
Author :
Ikhlef, A. ; Junsu Kim ; Schober, Robert
Author_Institution :
Univ. of British Columbia, Vancouver, BC, Canada
Abstract :
In this paper, a new relaying scheme, referred to as space full-duplex max-max relay selection (SFD-MMRS) is proposed. SFD-MMRS uses relay selection and half-duplex (HD) relays with buffers to mimic full-duplex (FD) relaying. It allows the selection of different relays for reception and transmission, which in turn enables simultaneous reception and transmission. With SFD-MMRS the pre-log factor 1 over 2 is removed from the capacity expression and better performance in terms of throughput is achieved compared to the existing schemes. We provide a comprehensive analysis of the capacity of the proposed scheme for a decode-and-forward (DF) protocol in Rayleigh fading. Our simulation results show that the capacity of the proposed scheme with HD relays exceeds twice the capacity of the best relay selection (BRS) scheme with HD relays.
Keywords :
Rayleigh channels; buffer circuits; decode and forward communication; protocols; HD relays; Rayleigh fading; SFD MMRS; best relay selection scheme; buffers; capacity expression; comprehensive analysis; decode and forward protocol; half duplex relays; mimic full duplex relaying; prelog factor; space full duplex max max relay selection;
Conference_Titel :
Global Communications Conference (GLOBECOM), 2012 IEEE
Conference_Location :
Anaheim, CA
Print_ISBN :
978-1-4673-0920-2
Electronic_ISBN :
1930-529X
DOI :
10.1109/GLOCOM.2012.6503811