Title :
Performance of the combining received differential encoding transmit diversity with imperfect carrier recovery over correlated Nakagami fading channels
Author :
Fan, Guoping ; Fan, Pingyi ; Cao, Zhigang
Author_Institution :
Dept. of Electron. Eng., Tsinghua Univ., Beijing, China
Abstract :
A differential detection scheme for transmit diversity was proposed by Tarokh [V. Tarokh et al., IEEE J. Selec. Areas Commun., Vol. 18, No. 7, pp. 1169-1174, July, 2000], which can achieve full diversity order without the requirement to estimate the channel state at the receiver. This paper investigates the potential of using multiple receive antennas for differential space time coded MPSK signals over correlated Nakagami fading channels. We also investigate the effect of the carrier frequency offset (CFO) and channel correlation on its performance and present some results on its maximal tolerable frequency offsets for different MPSK signals. The results have shown that the differential encoding transmit diversity is very robust to the CFO and channel correlation.
Keywords :
antenna arrays; channel estimation; correlation theory; differential detection; differential phase shift keying; diversity reception; fading channels; receiving antennas; space-time codes; synchronisation; BER; bit error rate; carrier frequency offset; channel correlation; channel state estimation; correlated Nakagami fading channels; differential detection scheme; differential space time coded MPSK signals; imperfect carrier recovery; maximal tolerable frequency offset; multiple receive antennas; received differential encoding transmit diversity; wireless communication; Diversity methods; Diversity reception; Fading; Frequency; Mobile antennas; Nakagami distribution; Radio transmitters; Rayleigh channels; Receiving antennas; State estimation;
Conference_Titel :
Communication Technology Proceedings, 2003. ICCT 2003. International Conference on
Print_ISBN :
7-5635-0686-1
DOI :
10.1109/ICCT.2003.1209728
