Sample-Spaced and Fractionally-Spaced CIR Estimation Aided Decision Directed Channel Estimation for OFDM and MC-CDMA


Akhtman, J. and Hanzo, L. (2005) Sample-Spaced and Fractionally-Spaced CIR Estimation Aided Decision Directed Channel Estimation for OFDM and MC-CDMA. In, IEEE VTC'05 (Fall), Intercontinental Hotel, Dallas, Texas, USA, 25 - 28 Sep 2005. , 1916-1920.

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Description/Abstract

The achievable performance of decision-directed channe estimation (DDCE) is analysed in the context of both OFDM and MC CDMA systems. Two different estimation methods suitable for both OFDM and MC-CDMA systems are considered, which employ sample spaced (SS) as well as fractionally-spaced (FS) a posteriori channe impulse response (CIR) estimators. The performance of both estimation methods is compared and it is shown that the DDCE scheme employing the FS-CIR estimator outperforms its SS-CIR estimator-based counter part. Furthermore, the FS-CIR estimator-based method exhibits higher robustness to various channel parameters such as the channel’s roo mean square delay spread. Finally, it is shown that the MC-CDMA system employing the channel estimation scheme advocated outperform its OFDM counterpart.

Item Type: Conference or Workshop Item (Paper)
Additional Information: Event Dates: 25-28 September 2005
Divisions: Faculty of Physical Sciences and Engineering > Electronics and Computer Science > Comms, Signal Processing & Control
ePrint ID: 260876
Date Deposited: 16 May 2005
Last Modified: 27 Mar 2014 20:03
Further Information:Google Scholar
ISI Citation Count:1
URI: http://eprints.soton.ac.uk/id/eprint/260876

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