Multi-antenna OFDM system using coded wavelet and weighted beamforming

Anoh, Kelvin O. O., Asif, Rameez, Abd-Alhameed, Raed A., Rodriguez, Jonathan, Noras, James M., Jones, Steve M. R. and Hussaini, Abubakar S. (2014) Multi-antenna OFDM system using coded wavelet and weighted beamforming. Radioengineering, 23 (1). pp. 356-361. ISSN 1210-2512

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A major drawback in deploying beamforming scheme in orthogonal frequency division multiplexing (OFDM) is to obtain the optimal weights that are associated with information beams. Two beam weighting methods, namely co-phasing and singular vector decomposition (SVD), are considered to maximize the signal beams for such beamforming scheme. Initially the system performance with and without interleaving is investigated using coded fast Fourier transform (FFT)-OFDM and wavelet-based OFDM. The two beamforming schemes are applied to the wavelet-based OFDM as confirmed to perform better than the FFT-OFDM. It is found that the beamweight by SVD improves the performance of the system by about 2 dB at the expense of the co-phasing method. The capacity performances of the weighting methods are also compared and discussed.

Item Type: Article
Uncontrolled Keywords: beam-weight,beamforming,fft,isi,lte,mimo,ofdm,steering,wavelet,electrical and electronic engineering ,/dk/atira/pure/subjectarea/asjc/2200/2208
Faculty \ School: Faculty of Science > School of Computing Sciences
UEA Research Groups: Faculty of Science > Research Groups > Smart Emerging Technologies
Faculty of Science > Research Groups > Cyber Security Privacy and Trust Laboratory
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Depositing User: LivePure Connector
Date Deposited: 07 Sep 2022 08:32
Last Modified: 11 Aug 2023 11:30

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