Title :
Signal Detection for Differential Bidirectional Relaying with Analog Network Coding under Imperfect Synchronisation
Author :
Zhuo Wu ; Luodan Liu ; Yanliang Jin ; Lingyang Song
Author_Institution :
Key Lab. of Specialty Fiber Opt. & Opt. Access Networks, Shanghai Univ., Shanghai, China
Abstract :
A parallel interference cancellation (PIC) based signal detection scheme is proposed for asynchronous bidirectional relay networks using analog network coding (ANC) with differential modulation. It is shown that the proposed scheme can effectively suppress the inter-symbol interference (ISI) in the received mixed signals at the relay node in the first transmission time-slot and offers significant performance improvement when neither the source nodes nor the relay knows the channel state information, and still retains a low computational complexity.
Keywords :
computational complexity; interference suppression; intersymbol interference; network coding; relay networks (telecommunication); signal detection; synchronisation; ANC; ISI; PIC based signal detection; analog network coding; asynchronous bidirectional relay networks; channel state information; computational complexity; differential bidirectional relaying; differential modulation; imperfect synchronisation; intersymbol interference; mixed signals; parallel interference cancellation; source nodes; Estimation; Interference; Modulation; Network coding; Relays; Signal detection; Synchronization; Imperfect synchronization; analogue network coding; differential modulation; parallel interference cancellation;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2013.050313.130107
