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

fYear

2011

fDate

26-28 Jan. 2011

Firstpage

306

Lastpage

310

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Information Networking (ICOIN), 2011 International Conference on

Conference_Location

Barcelona

ISSN

1976-7684

Print_ISBN

978-1-61284-661-3

Type

conf

DOI

10.1109/ICOIN.2011.5723198

Filename

5723198