Title :
List-Sequential (LISS) Multiple-Symbol Detection of Differential Phase Shift Keying
Author :
Bauch, Gerhard ; Kuhn, Christian ; Sethuraman, Prasanna
Author_Institution :
DoCoMo Euro-Labs, Munich
Abstract :
The application of multi-symbol detectors for FEC coded DPSK allows to achieve significant turbo gains in a non-coherent iterative detection scheme. However, the complexity is increased compared to standard differential DPSK detection based on two received symbols. For example, in a trellis based detector, the complexity grows exponentially with the number of symbols which are taken into consideration. In this paper, we propose to apply a list-sequential (LISS) algorithm with soft augmentation in the turbo scheme in order to overcome the complexity problem. We unveil problems which appear particularly in non-coherent DPSK detection and show that the LISS detector can achieve the same performance as an optimum but prohibitively complex APP detector at reasonable SNR
Keywords :
differential detection; differential phase shift keying; forward error correction; trellis codes; turbo codes; FEC coded DPSK; SNR; complex APP detector; differential phase shift keying; list-sequential multiple-symbol detection; noncoherent iterative detection scheme; soft augmentation; trellis based detector; turbo gains; Channel estimation; Convolutional codes; Detection algorithms; Detectors; Differential phase shift keying; Differential quadrature phase shift keying; Forward error correction; Iterative decoding; Phase detection; Phase shift keying;
Conference_Titel :
Vehicular Technology Conference, 2006. VTC 2006-Spring. IEEE 63rd
Conference_Location :
Melbourne, Vic.
Print_ISBN :
0-7803-9391-0
Electronic_ISBN :
1550-2252
DOI :
10.1109/VETECS.2006.1683140
