標題: Blind joint channel and data estimation for OFDM signals in Rayleigh fading
作者: Chang, MX
Su, YT
電信工程研究所
Institute of Communications Engineering
公開日期: 2001
摘要: In this paper we present several blind model-based joint channel and data estimation methods for Orthogonal Frequency Division Multiplexing (OFDM) signals. We model the time-varying channel response as a polynomial in time. Joint channel estimation and data detection are accomplished by finding the data sequence and regression coefficients that results in the minimum metric between the data-dependent polynomial and the received samples. Our method does not require the information of the channel statistics like signal-to-noise ratio (SNR) or correlation function. Performing exhaustive search among candidate sequences, though optimal, is impractical for long sequences. We develop some suboptimal methods and discuss their pro and con. A two-stage hybrid detection algorithm is proposed and used for detecting differential phase shift keying (DPSK) signals in Rayleigh fading.
URI: http://hdl.handle.net/11536/18997
ISBN: 0-7803-6728-6
ISSN: 1090-3038
期刊: IEEE VTC 53RD VEHICULAR TECHNOLOGY CONFERENCE, SPRING 2001, VOLS 1-4, PROCEEDINGS
起始頁: 791
結束頁: 795
Appears in Collections:Conferences Paper