Title :
Sep of cooperative systems using Amplify and Forward or Decode and Forward relaying
Author :
Amara, Sami ; Boujemaa, Hatem ; Hamdi, Noureddine
Author_Institution :
TECHTRA Res. Unit, Higher Sch. of Commun. of Tunis, Tunis, Tunisia
Abstract :
In this paper, we derive the Symbol Error Probability (SEP) of cooperative systems using Amplify and Forward (AF) or Decode and Forward (DF) relaying. In AF relaying, each relay amplifies and retransmits to the destination the received signal from source. The destination combines the signals received from all relays and the source using aMaximum Ratio Combining (MRC) strategy. For DF relaying, each relay decodes the received signal. It forwards the decoded symbol if it decodes correctly. Otherwise, it remains idle. In DF relaying, two protocols are presented. In the first one, each relay decodes only the received signal from the source. In the second one, each relay combines the signals received from the source and the previous m relays. Exact and asymptotic SEP of AF and DF relaying are derived and compared to simulation results.
Keywords :
amplify and forward communication; cooperative communication; decode and forward communication; decoding; diversity reception; error statistics; protocols; relay networks (telecommunication); AF relaying; DF relaying; MRC strategy; SEP; amplify and forward relaying; cooperative system; decode and forward relaying; maximum ratio combining strategy; received signal decoding; symbol error probability; Abstracts; Relays; US Department of Defense;
Conference_Titel :
Signal Processing Conference, 2009 17th European
Conference_Location :
Glasgow
Print_ISBN :
978-161-7388-76-7
