Title :
Distributed STF coding for C-OFDM systems
Author :
Xu, Xin ; Song, Zhiqun ; Yang, Weiwei ; Wu, Heng ; Liu, Xiaoning
Author_Institution :
54th Res. Inst., CETC, Shijiazhuang, China
Abstract :
A distributed space-time-frequency (STF) coding scheme is proposed for cooperative OFDM (C-OFDM) systems with three terminals over quasi-static frequency-selective Rayleigh fading channels. The outage probability performance is derived and its tight closed-form lower bound is presented. Asymptotic analysis indicates that the proposed scheme can achieve both spatial and multipath (frequency) diversity. Simulation results confirm the previously introduced theoretical analysis.
Keywords :
OFDM modulation; Rayleigh channels; diversity reception; probability; space-time codes; C-OFDM systems; asymptotic analysis; closed-form lower bound; cooperative OFDM systems; distributed STF coding; frequency diversity; multipath diversity; orthogonal frequency division multiplexing; outage probability performance; quasistatic frequency selective Rayleigh fading channels; space-time-frequency coding scheme; spatial diversity; theoretical analysis; Block codes; Diversity methods; Diversity reception; Error probability; Fading; Frequency diversity; MIMO; OFDM modulation; Relays; Transmitters; cooperative diversity; multipath channel; space-time-frequency (STF) coding;
Conference_Titel :
Wireless Communications & Signal Processing, 2009. WCSP 2009. International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-4856-2
Electronic_ISBN :
978-1-4244-5668-0
DOI :
10.1109/WCSP.2009.5371618
