Time-domain adaptive channel estimation for OFDM-based WLAN with multiple-antennas

M. A. Saeed, B. M. Ali, N. K. Noordin, S. Khatun, Mahamod Ismail

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this paper, an adaptive time-domain (TD) channel estimation scheme, based on recursive least squares (RLS) algorithm, is proposed for multipleinput multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) based wireless local area networks (WLANs). The estimator is then extended to perform decision-directed (DD) channel tracking during data transmission. The channel is assumed to be constant during one OFDM symbol but evolves in time according to the first-order Markov process. Different training rates at different Doppler frequencies were investigated. Simulation results show that the proposed estimation scheme has excellent performance measured in terms of the mean squares error (MSE) and the bit error rate (BER), provided that the forgetting factor of the RLS algorithm is optimally selected.

Original languageEnglish
Title of host publicationProceedings of the International Conference on Computer and Communication Engineering 2008, ICCCE08: Global Links for Human Development
Pages261-265
Number of pages5
DOIs
Publication statusPublished - 2008
EventInternational Conference on Computer and Communication Engineering 2008, ICCCE08: Global Links for Human Development - Kuala Lumpur
Duration: 13 May 200815 May 2008

Other

OtherInternational Conference on Computer and Communication Engineering 2008, ICCCE08: Global Links for Human Development
CityKuala Lumpur
Period13/5/0815/5/08

Fingerprint

Channel estimation
Wireless local area networks (WLAN)
Orthogonal frequency division multiplexing
Antennas
Mean square error
Bit error rate
Markov processes
Data communication systems

ASJC Scopus subject areas

  • Computer Science Applications
  • Human-Computer Interaction

Cite this

Saeed, M. A., Ali, B. M., Noordin, N. K., Khatun, S., & Ismail, M. (2008). Time-domain adaptive channel estimation for OFDM-based WLAN with multiple-antennas. In Proceedings of the International Conference on Computer and Communication Engineering 2008, ICCCE08: Global Links for Human Development (pp. 261-265). [4580608] https://doi.org/10.1109/ICCCE.2008.4580608

Time-domain adaptive channel estimation for OFDM-based WLAN with multiple-antennas. / Saeed, M. A.; Ali, B. M.; Noordin, N. K.; Khatun, S.; Ismail, Mahamod.

Proceedings of the International Conference on Computer and Communication Engineering 2008, ICCCE08: Global Links for Human Development. 2008. p. 261-265 4580608.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Saeed, MA, Ali, BM, Noordin, NK, Khatun, S & Ismail, M 2008, Time-domain adaptive channel estimation for OFDM-based WLAN with multiple-antennas. in Proceedings of the International Conference on Computer and Communication Engineering 2008, ICCCE08: Global Links for Human Development., 4580608, pp. 261-265, International Conference on Computer and Communication Engineering 2008, ICCCE08: Global Links for Human Development, Kuala Lumpur, 13/5/08. https://doi.org/10.1109/ICCCE.2008.4580608
Saeed MA, Ali BM, Noordin NK, Khatun S, Ismail M. Time-domain adaptive channel estimation for OFDM-based WLAN with multiple-antennas. In Proceedings of the International Conference on Computer and Communication Engineering 2008, ICCCE08: Global Links for Human Development. 2008. p. 261-265. 4580608 https://doi.org/10.1109/ICCCE.2008.4580608
Saeed, M. A. ; Ali, B. M. ; Noordin, N. K. ; Khatun, S. ; Ismail, Mahamod. / Time-domain adaptive channel estimation for OFDM-based WLAN with multiple-antennas. Proceedings of the International Conference on Computer and Communication Engineering 2008, ICCCE08: Global Links for Human Development. 2008. pp. 261-265
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