Title :
A generalization of multiple-symbol differential detection and its application to fast time-varying fading channels
Author :
Kubo, Hiroshi ; Okazaki, Akihiro ; Tanada, Kazuo ; Murakami, Keishi
Author_Institution :
Inform. Technol. R&D Center, Mitsubishi Electr. Corp., Kanagawa, Japan
Abstract :
This paper discusses a generalized concept of multiple-symbol differential detection (MDD) and analytically derives parameters for MDD on fast time-varying channels. At first, this paper shows that adaptive maximum-likelihood sequence estimation (MLSE) employing the per-survivor processing (PSP-MLSE) with a single channel tap similar to the concept of MDD. Next, parameters for MDD are derived according to the channel estimation of PSP-MLSE based on a high order channel prediction. Finally, computer simulation confirms that MDD with the analytically derived parameters has excellent tracking capability on fast time-varying fading channels.
Keywords :
Viterbi detection; channel estimation; differential detection; fading channels; maximum likelihood estimation; phase shift keying; time-varying channels; Doppler frequency; Viterbi detection; channel estimation; channel prediction; differential phase shift keying; fast time-varying fading channels; maximum-likelihood sequence estimation; multiple-symbol differential detection; per-survivor processing; AWGN; Channel estimation; Computer simulation; Demodulation; Fading; Intersymbol interference; Maximum likelihood detection; Maximum likelihood estimation; Phase shift keying; Viterbi algorithm;
Conference_Titel :
Vehicular Technology Conference, 2003. VTC 2003-Spring. The 57th IEEE Semiannual
Print_ISBN :
0-7803-7757-5
DOI :
10.1109/VETECS.2003.1208810
