Title :
Multihop Multibranch DF Relaying for Cooperative Systems
Author :
Amara, Sami ; Boujemâa, Hatem
Author_Institution :
Higher Sch. of Commun. of Tunis, Univ. of Carthage, Tunis, Tunisia
Abstract :
In this paper we derive the Bit Error Probability (BEP) of cooperative systems using Decode and Forward (DF) relaying over Rayleigh fading channels. Two system models are studied: multihop single branch relaying and multibranch multihop relaying. Novel exact expressions are derived for both the Moment Generation Function (MGF) and the Probability Density Function (PDF) of the SNR at the destination. The BEP expression is obtained using these theoretical results for M-QAM modulations. Simple asymptotic expressions of the BEP are also derived. Numerical results and computer simulations are compared to verify the accuracy of the derived expressions.
Keywords :
Rayleigh channels; cooperative communication; decode and forward communication; error statistics; probability; quadrature amplitude modulation; BEP expression; M-QAM modulations; Rayleigh fading channels; SNR; bit error probability; cooperative systems; decode and forward relaying; moment generation function; multihop multibranch DF relaying; multihop single branch relaying; probability density function; Diversity reception; Error probability; Fading; Modulation; Protocols; Relays; Signal to noise ratio;
Conference_Titel :
Vehicular Technology Conference (VTC Spring), 2011 IEEE 73rd
Conference_Location :
Yokohama
Print_ISBN :
978-1-4244-8332-7
DOI :
10.1109/VETECS.2011.5956764
