Enhanced channel estimation technique in MIMO-OFDM system

M. A. Ahmed, S. A. Jimaa, I. Y. Abualhaol

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

Multiple Input Multiple Output (MIMO) Orthogonal Frequency Division Multiplexing (OFDM), MIMO-OFDM, is considered as a spectrally efficient approach to achieve high throughput communications. This paper investigates the performance of MIMO-OFDM system using the proposed NLMS adaptive equalizer and the developed Singular Value Decomposition (SVD) technique in estimating the channel. The performances of using various values of the NLMS algorithm's step-size were also investigated and an optimum value, based on a trade-off between the convergence speed and the steady state noise floor, was chosen. Then, the bit error rate (BER) performance of the NLMS adaptive receiver is compared with that of the SVD algorithm. It is clear that the SVD gives better performance over the NLMS adaptive filter.

Original languageBritish English
Title of host publication2012 IEEE 8th International Conference on Wireless and Mobile Computing, Networking and Communications, WiMob 2012
Pages545-549
Number of pages5
DOIs
StatePublished - 2012
Event2012 IEEE 8th International Conference on Wireless and Mobile Computing, Networking and Communications, WiMob 2012 - Barcelona, Spain
Duration: 8 Oct 201210 Oct 2012

Publication series

NameInternational Conference on Wireless and Mobile Computing, Networking and Communications
ISSN (Print)2161-9646
ISSN (Electronic)2161-9654

Conference

Conference2012 IEEE 8th International Conference on Wireless and Mobile Computing, Networking and Communications, WiMob 2012
Country/TerritorySpain
CityBarcelona
Period8/10/1210/10/12

Keywords

  • Adaptive Filter
  • MIMO-OFDM
  • NLMS
  • Step-Size
  • SVD

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