Title :
Multiple symbol differential detection for differential cyclic delay diversity system in slow frequency selective fading channel
Author :
Hashim, Wahidah ; Ramli, Nordin ; Yaacob, Azmi
Author_Institution :
Wireless Network & Protocol Res. (WNPR), Wireless Commun. Cluster, MIMOS Berhad, Kuala Lumpur, Malaysia
Abstract :
The paper details the implementation of multiple-symbols differential detection (MSDD) to differential cyclic delay diversity (DCDD) system. It is suggested that MSDD offers a better performance compared to normal differential detection. The implementation incorporates the modification of standard DCDD receiver to accommodate MSDD technique. Investigations were carried out involving comparison of performance between DCDD and MSDD-DCDD. It was found that there is a marginal improvement of 0.5 dB in MSDD-DCDD compared to normal DCDD. A thorough analysis on the detection algorithm is described in this paper which results in generic detection algorithm for any number of observation symbols. In addition, the impact of cyclic delays is also investigated.
Keywords :
OFDM modulation; differential detection; diversity reception; fading channels; DCDD; MSDD; differential cyclic delay diversity system; gain 0.5 dB; multiple symbol differential detection; slow frequency selective fading channel; Artificial neural networks; Binary phase shift keying; Coherence; Receivers; Time domain analysis; Wireless communication; DCDD; MSDD; OFDM; Transmit Diversity;
Conference_Titel :
Information Networking (ICOIN), 2011 International Conference on
Conference_Location :
Barcelona
Print_ISBN :
978-1-61284-661-3
DOI :
10.1109/ICOIN.2011.5723198
