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Low complexity time-domain channel and delay spread estimation for OFDM systems

Zhu, M, Awoseyila, AB and Evans, BG (2010) Low complexity time-domain channel and delay spread estimation for OFDM systems IEEE Transactions on Consumer Electronics, 56 (4). 2170 - 2177. ISSN 0098-3063

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Abstract

A low complexity time-domain channel estimation scheme for OFDM systems is presented. It uses a training symbol (preamble) to estimate the channel impulse response (CIR) in the presence of timing synchronization errors. Its computational complexity is much lower than that of the popular MMSE technique and this can be further reduced if there is prior knowledge of the channel delay spread. Consequently, channel delay spread estimation is also addressed by using threshold setting on the optimized CIR. Computer simulations show that the proposed scheme achieves near-ideal accuracy in quasi-static channels.

Item Type: Article
Additional Information: © 2010 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Divisions: Faculty of Engineering and Physical Sciences > Electronic Engineering > Centre for Communication Systems Research
Depositing User: Symplectic Elements
Date Deposited: 24 May 2012 09:32
Last Modified: 23 Sep 2013 19:20
URI: http://epubs.surrey.ac.uk/id/eprint/339671

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