Discrete-wavelet transform modulation over Multiple Input Multiple Output applications

Anoh, O. O.; Abd‐Alhameed, Raed A.; Elkhazmi, E.A.; Ali, Nazar; Jones, S. M. R.; Dama, Y. A. S.

doi:10.1109/honet.2012.6421467

Cited by 4 publications

(3 citation statements)

References 5 publications

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“…Equation (1) defines a simple orthogonality condition between two daughter wavelets. Since ψ(t) is obtained from the decomposition of φ(t), we can express the relationship of the input signal with φ(t) in discrete form as [12];…”

Section: Traditional Wavelet Theorymentioning

confidence: 99%

Novel Fractional Wavelet Transform with Closed-Form Expression

Anoh¹,

Abd‐Alhameed²,

Jones³

et al. 2014

IJACSA

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Section: Traditional Wavelet Theorymentioning

confidence: 99%

Novel Fractional Wavelet Transform with Closed-Form Expression

Anoh¹,

Abd‐Alhameed²,

Jones³

et al. 2014

IJACSA

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“…Equation 6 represents the orthogonality of two wavelets for a signal periodically band-limited with λ, -2π ≤ λ ≤ 2π. Since  ) (t  φ(t), where  represents a proper subset of, the input signal with φ(t) can be represented in discrete form as [19];…”

Section: Iii1 Basic Wavelet Theorymentioning

confidence: 99%

On the Application of Raised-Cosine Wavelets for Multicarrier Systems Design

Anoh

Mapoka

Abd‐Alhameed

et al. 2014

IRECAP

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Link to publisher's version: http: //dx.doi.org/10.15866/irecap.v4i4.2455 Citation: Anoh KOO, Mapoka TT, Abd-Alhameed RA, Ochonogor O and Jones SMR (2014) On the application of raised-cosine wavelets for multicarrier systems design. International Journal on Communications Antenna and Propagation. 4(4): 143 -150.Copyright statement: © 2014 Praise Worthy Prize S.r.l. Full-text reproduced with permission from the publisher. (IRECAP), 2014, Vol. 4, N. 4, pp. 143 -150. August 2014 ISSN 2039 -5086 On International Journal on Communications and Propagation

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“…The method involves nulling the interfering terms in the resulting decoding process to improve the performance of the scheme. Then, it is well known that combining OFDM with MIMO thrives towards achieving improved BER and better throughput [9]. The OFDM treats frequency selective channel as flat fading channel with cyclic prefix (CP) that is at least equal to the channel delay spread.…”

Section: Introductionmentioning

confidence: 99%

Improved QO-STBC OFDM System Using Null Interference Elimination

Anoh¹,

Abd‐Alhameed²,

Dama³

et al. 2013

IJACSA

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Abstract-The quasi-orthogonal space time block coding (QO-STBC) over orthogonal frequency division multiplexing (OFDM) is investigated. Traditionally, QO-STBC does not achieve full diversity since the detection matrix of QO-STBC scheme is not a diagonal matrix. In STBC, the decoding matrix is a diagonal matrix which enables linear decoding whereas the decoding matrix in traditional QO-STBC does not enable linear decoding. In this paper it is shown that there are some interfering terms in terms of non-diagonal elements that result from the decoding process which limit the linear decoding. As a result, interference from the application of the QO-STBC decoding matrix depletes the performance of the scheme such that full diversity is not attained. A method of eliminating this interference in QO-STBC is investigated by nulling the interfering terms towards full diversity for an OFDM system. It was found that the interference reduction technique permits circa 2dB BER performance gain in QO-STBC. The theoretical and simulation results are presented, for both traditional QO-STBC and interference-free QO-STBC applying OFDM.

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Discrete-wavelet transform modulation over Multiple Input Multiple Output applications

Cited by 4 publications

References 5 publications

Novel Fractional Wavelet Transform with Closed-Form Expression

Novel Fractional Wavelet Transform with Closed-Form Expression

On the Application of Raised-Cosine Wavelets for Multicarrier Systems Design

Improved QO-STBC OFDM System Using Null Interference Elimination

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