Title :
A new receiver architecture for joint carrier, channel, and data estimation for high-rate WPAN systems
Author :
Li, Wenzhen ; Tomisawa, Masayuki
Author_Institution :
OKI Techno Centre (Singapore) Pte. Ltd., Singapore, Singapore
Abstract :
A novel receiver structure for joint carrier, channel and data estimation is proposed for WPAN systems. The proposed scheme utilizes the properties of the CAZAC preamble sequence to extract the channel impulse response (CIR) and frequency offset. It integrates G. Ungerboeck´s MLSE (see IEEE Trans. on Commun., vol.com-22, no.5 p.624-36, 1974) and a dual-model PLL optimally. Compared with the conventional joint estimation techniques, which includes the most effective PSP (per-survivor processing) estimation, the proposed scheme has smaller complexity and equivalent BER performance. It is shown that by trading off phase tracking performance and complexity, the proposed scheme is an efficient solution to high-rate WPAN systems.
Keywords :
channel estimation; computational complexity; error statistics; fading channels; indoor radio; maximum likelihood sequence estimation; personal communication networks; phase locked loops; radio receivers; transient response; CIR; MLSE; PLL; carrier estimation; channel estimation; channel impulse response; complexity; data estimation; fading channel; indoor environment; phase tracking; phase-lock-loop; preamble sequence; receiver architecture; wireless PAN; wireless personal area networks; Bluetooth; Decision feedback equalizers; Delay; Fading; Frequency estimation; Indoor environments; Maximum likelihood estimation; Phase detection; Phase locked loops; Timing;
Conference_Titel :
Vehicular Technology Conference, 2002. Proceedings. VTC 2002-Fall. 2002 IEEE 56th
Print_ISBN :
0-7803-7467-3
DOI :
10.1109/VETECF.2002.1040493
