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AuthorOmri A.
AuthorHamila R.
AuthorHasna , Mazen
AuthorBouallegue R.
Available date2022-04-26T11:06:54Z
Publication Date2012
Publication Name2012 11th International Conference on Information Science, Signal Processing and their Applications, ISSPA 2012
ResourceScopus
Identifierhttp://dx.doi.org/10.1109/ISSPA.2012.6310690
URIhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-84868584714&doi=10.1109%2fISSPA.2012.6310690&partnerID=40&md5=1c0c3ef83c49ecf76d802cbb594bf75d
URIhttp://hdl.handle.net/10576/30526
AbstractIn this contribution, we propose an improvement of Alamouti coding for equalization of space-time block code multiple-input multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) over highly-selective fading channels for Long Term Evolution (LTE) systems. The conventional Alamouti STBC receiver suffers from performance degradation when the channel is not constant during the period of Alamouti codeword transmission. The principle of the new method is a modification of MIMO decoding at the receiver to adapt to the channel variations and improve consequently the link reliability of LTE system. Performance evaluation of the proposed method is confirmed by simulations and through a comparative study with well-known MIMO coding methods; the Vertical Bell-Labs layered Space Time Block code (VBLAST-STBC) and Golden Space-Time Trellis Code (Golden STTC). Also, performance evaluation, using estimated channels by the standard methods; Wiener estimator and Spline interpolator confirm that the modified Alamouti-based method can adapt to the channel variations and give a better channel equalization even over highly-selective fading estimated channels which subsequently improve the service quality and the link reliability.
Languageen
PublisherIEEE
SubjectAlamouti
Alamouti coding
Channel equalization
Channel variations
Codeword transmissions
Coding methods
Comparative studies
Layered space time block codes
Link reliability
Performance degradation
Performance evaluation
Selective channels
Service Quality
Space-time block code
Space-time trellis codes
Standard method
STBC
Communication channels (information theory)
Decoding
Gold
Information science
MIMO systems
Orthogonal frequency division multiplexing
Signal processing
Space-time block coding (STBC)
TitleModified Alamouti decoding for highly selective channels for LTE systems
TypeConference Paper
Pagination940-944
dc.accessType Abstract Only


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