Time-domain RLS-based channel estimation for MIMO OFDM systems

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

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

6 Citations (Scopus)

Abstract

In this paper, an adaptive channel estimation scheme for MIMO OFDM systems based on time-domain training and recursive least squared (RLS) algorithm is proposed. Time orthogonal as well as simultaneously transmitted training sequences are considered. The channel is assumed to be slowly varying time-dispersive, i.e., constant during one OFDM symbol but changing from symbol to symbol. Channel estimation is performed in time-domain followed by zero-forcing equalization in the frequency-domain. The computational complexity is significantly reduced by applying the matrix inversion lemma. Simulation results show that the proposed estimator with time orthogonal training sequences has better estimation performance over a range of Doppler spreads compared to the case when the training sequences are simultaneously transmitted from the different transmit antennas.

Original languageEnglish
Title of host publicationProceeding - 2007 IEEE International Conference on Telecommunications and Malaysia International Conference on Communications, ICT-MICC 2007
Pages520-525
Number of pages6
DOIs
Publication statusPublished - 2007
Event2007 IEEE International Conference on Telecommunications and Malaysia International Conference on Communications, ICT-MICC 2007 - Penang
Duration: 14 May 200717 May 2007

Other

Other2007 IEEE International Conference on Telecommunications and Malaysia International Conference on Communications, ICT-MICC 2007
CityPenang
Period14/5/0717/5/07

Fingerprint

Channel estimation
MIMO systems
Orthogonal frequency division multiplexing
symbol
Computational complexity
Antennas
time
simulation
performance

Keywords

  • Channel estimation
  • MIMO
  • OFDM
  • RLS algorithm

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering
  • Communication

Cite this

Saeed, M. A., Ali, B. M., Ismail, M., Khatun, S., & Noordin, N. K. (2007). Time-domain RLS-based channel estimation for MIMO OFDM systems. In Proceeding - 2007 IEEE International Conference on Telecommunications and Malaysia International Conference on Communications, ICT-MICC 2007 (pp. 520-525). [4448692] https://doi.org/10.1109/ICTMICC.2007.4448692

Time-domain RLS-based channel estimation for MIMO OFDM systems. / Saeed, M. A.; Ali, B. M.; Ismail, Mahamod; Khatun, S.; Noordin, N. K.

Proceeding - 2007 IEEE International Conference on Telecommunications and Malaysia International Conference on Communications, ICT-MICC 2007. 2007. p. 520-525 4448692.

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

Saeed, MA, Ali, BM, Ismail, M, Khatun, S & Noordin, NK 2007, Time-domain RLS-based channel estimation for MIMO OFDM systems. in Proceeding - 2007 IEEE International Conference on Telecommunications and Malaysia International Conference on Communications, ICT-MICC 2007., 4448692, pp. 520-525, 2007 IEEE International Conference on Telecommunications and Malaysia International Conference on Communications, ICT-MICC 2007, Penang, 14/5/07. https://doi.org/10.1109/ICTMICC.2007.4448692
Saeed MA, Ali BM, Ismail M, Khatun S, Noordin NK. Time-domain RLS-based channel estimation for MIMO OFDM systems. In Proceeding - 2007 IEEE International Conference on Telecommunications and Malaysia International Conference on Communications, ICT-MICC 2007. 2007. p. 520-525. 4448692 https://doi.org/10.1109/ICTMICC.2007.4448692
Saeed, M. A. ; Ali, B. M. ; Ismail, Mahamod ; Khatun, S. ; Noordin, N. K. / Time-domain RLS-based channel estimation for MIMO OFDM systems. Proceeding - 2007 IEEE International Conference on Telecommunications and Malaysia International Conference on Communications, ICT-MICC 2007. 2007. pp. 520-525
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