Title :
BER analysis of physical layer network coding with PSK modulations for two-way relay channels
Author :
Lei Wang ; Zhuo Wu
Author_Institution :
Key Lab. of Specialty Fiber Opt. & Opt. Access Networks, Shanghai Univ., Shanghai, China
Abstract :
In this paper, the bit error rate (BER) performances of the physical layer network coding (PLNC) without channel coding in bidirectional relay networks with different PSK modulation schemes over Rayleigh fading channels are investigated. A bidirectional relay system where the two source nodes exchange information via a single relay node is considered. Several transmission scenarios, including both symmetric and asymmetric relaying, where the two source nodes use the same modulation and different modulation schemes in the multiple access channel transmission phase, are analysed. And an end-to-end BER analysis for each transmission mode is then given. Simulation results show that our derived BER analysis accurately matches with the simulation results for both symmetric and asymmetric relaying under various modulation schemes.
Keywords :
Rayleigh channels; channel coding; error statistics; modulation coding; multi-access systems; network coding; phase shift keying; PLNC; PSK modulation schemes; Rayleigh fading channels; asymmetric relaying; bidirectional relay networks; bidirectional relay system; bit error rate; end-to-end BER analysis; multiple access channel transmission phase; physical layer network coding; single relay node; source nodes; symmetric relaying; two-way relay channels; bidirectional relay network; end-to-end bit error rate (BER); physical layer network coding; two-way relaying;
Conference_Titel :
Signal Processing, Communication and Computing (ICSPCC), 2012 IEEE International Conference on
Conference_Location :
Hong Kong
Print_ISBN :
978-1-4673-2192-1
DOI :
10.1109/ICSPCC.2012.6335644
