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A Channel Estimation Algorithm for Mobile Communication Systems in a Fading Environment
Kyoo-Jin HAN Een-Kee HONG Sang-Tae KIM Keum-Chan WHANG
IEICE TRANSACTIONS on Communications
Publication Date: 2002/03/01
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Terrestrial Radio Communications
maximum Doppler frequency, phase variations, BPSK modulated signals,
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In this letter, an algorithm that estimates one of the most important channel parameters, maximum Doppler frequency, fD, is proposed. The algorithm uses phase variations of received pilot signals, which is strongly related with fD in a fading environment. In addition, a phase variation measurement method for binary phase shift keying (BPSK) modulated signals is also proposed and it makes possible to estimate fD from BPSK modulated information signals as well as unmodulated pilot signals. The results show that the proposed algorithm is very simple and shows good performance over wide Doppler frequency range.