Block Iterative/Adaptive Frequency-Domain Channel Estimation for Cyclic-Prefixed Single-Carrier Broadband Wireless Systems | Zendy

JongSeob Baek | Zendy; JongSoo Seo | Zendy

Open Access

Block Iterative/Adaptive Frequency-Domain Channel Estimation for Cyclic-Prefixed Single-Carrier Broadband Wireless Systems

Author(s) -

JongSeob Baek,

JongSoo Seo

Publication year - 2008

Publication title -

international journal of digital multimedia broadcasting

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.164

H-Index - 17

eISSN - 1687-7586

pISSN - 1687-7578

DOI - 10.1155/2008/509171

Subject(s) - computer science , algorithm , frequency domain , block (permutation group theory) , channel (broadcasting) , a priori and a posteriori , wireless broadband , wireless , control theory (sociology) , telecommunications , mathematics , wireless network , artificial intelligence , philosophy , geometry , control (management) , epistemology , computer vision

This paper presents a new block iterative/adaptive frequency-domain channel estimation scheme, in which a channel frequency response (CFR) is estimated iteratively by the proposed weighted element-wise block adaptive frequency-domain channel estimation (WEB-CE) scheme using the soft information obtained by a soft-input soft-output (SISO) decoder. In the WEB-CE, an equalizer coefficient is calculated by minimizing a weighted conditional squared-norm of the a posteriori error vector with respect to its correction term. Simulation results verify the superiority of the WEB-CE in a time-varying typical urban (TU) channel

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