Title :
Exact BER Performance Analysis of Link Adaptive Relaying with Noncoherent BFSK Modulation
Author_Institution :
Dept. of Electr. & Electron. Eng., Selcuk Univ., Konya, Turkey
Abstract :
Link adaptive relaying (LAR) is one of the most popular techniques developed for mitigating error propagation in decode and forward (DF) based cooperative wireless networks which employs soft power scaling approaches at the relay nodes. On the other side, frequency shift keying (FSK) is a prominent technique for eliminating the need for channel estimation by training sequences which increases complexity of the system and causes reduction in the transmission rate in proportional to the number of users involved in the network. In this paper, performance of an LAR scheme with noncoherent binary FSK (BFSK) signaling is investigated by deriving exact closed form bit error rate expressions in Rayleigh fading channels.
Keywords :
Rayleigh channels; channel estimation; cooperative communication; decode and forward communication; error statistics; frequency shift keying; relay networks (telecommunication); BER; LAR; Rayleigh fading channels; binary frequency shift keying; bit error rate; channel estimation; cooperative wireless networks; decode and forward networks; error propagation; link adaptive relaying; noncoherent BFSK modulation; noncoherent binary FSK signaling; soft power scaling; training sequences; Bit error rate; Fading; Frequency shift keying; Relays; Signal to noise ratio; Wireless networks; Adaptive transmissions; bit error rate; cooperative diversity; decode and forward protocol; frequency shift keying;
Journal_Title :
Signal Processing Letters, IEEE
DOI :
10.1109/LSP.2014.2339934
