Title :
An iterative noncoherent relay receiver for the two-way relay channel
Author :
Ferrett, Terry ; Valenti, Matthew C. ; Torrieri, Don
Author_Institution :
West Virginia Univ., Morgantown, WV, USA
Abstract :
Digital network coding improves the throughput of the two-way relay channel by allowing multiple sources to transmit simultaneously to the relay. This work considers the development of a relay receiver applying a specific modulation and channel coding technique - turbo-coded noncoherent orthogonal FSK in the two-way relay channel operated with digital network coding. The relay receiver supports any modulation order which is a power of two, and iterative channel decoding with information feedback from decoder to demodulator, using bit interleaved coded modulation with iterative decoding (BICM-ID). The performance of the receiver is investigated in fading channels through error-rate simulations and capacity analysis, and results show an energy efficiency improvement of 0.5-0.9 dB over similar systems which do not utilize BICM-ID.
Keywords :
channel coding; demodulators; error analysis; fading channels; frequency shift keying; iterative decoding; modulation coding; network coding; radio receivers; relay networks (telecommunication); turbo codes; BICM-ID; bit interleaved coded modulation; capacity analysis; channel coding; demodulator; digital network coding; error-rate simulations; fading channels; information feedback; iterative channel decoding; iterative decoding; iterative noncoherent relay receiver; multiple sources; specific modulation; turbo-coded noncoherent orthogonal FSK; two-way relay channel; Decoding; Demodulation; Error analysis; Iterative decoding; Receivers; Relays;
Conference_Titel :
Communications (ICC), 2013 IEEE International Conference on
Conference_Location :
Budapest
DOI :
10.1109/ICC.2013.6655541
