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Publikováno v:
IEEE Access, Vol 8, Pp 103601-103609 (2020)
It is well established that the performance of communication systems is improved when deploying multiple antennas at one or both of the transmit/receive sides; and the amount of the gained improvement depends on the level of multipath richness of the
Autor:
Prayoot Akkaraekthalin, Mohd Fais Mansor, Azremi Abdullah Al-Hadi, Rizwan Khan, Xiaoming Chen, Ahmed Mohamed Elshirkasi, Ping Jack Soh
Publikováno v:
IEEE Access, Vol 8, Pp 28164-28177 (2020)
This paper investigates the performance variation when a different number of antenna elements (AEs) is integrated onto a single MIMO mobile terminal, both in free space and when held in a user hand in data mode. Starting with a minimum of two AEs, th
Publikováno v:
IEEE Access, Vol 8, Pp 188233-188242 (2020)
This paper studies the multiple-input-multiple-output (MIMO) detection problem. Existing works model the MIMO detection as a tree or factor graph. This work adds a new member called the clique graph model to the MIMO detection graph model family so t
Publikováno v:
IEEE Access, Vol 7, Pp 30135-30141 (2019)
This paper addresses the asymptotic behavior of a particular type of information-plus-noise-type matrices, where the column and row numbers of the matrices are large and of the same order, while signals have diverged and the time delays of the channe
Publikováno v:
IEEE Access, Vol 7, Pp 86964-86978 (2019)
We propose a weighted $l_{p}$ minimization method for downlink channel estimation in frequency division duplexing massive multiple-input multiple-output (MIMO) systems. The proposed algorithm involves two stages, in which it first diagnoses the downl
Autor:
Defu Jiang, Jianfeng Li
Publikováno v:
IEEE Access, Vol 6, Pp 13931-13938 (2018)
The problem of 2-D angle estimation for coprime multiple-input multiple-output (MIMO) radar is considered, and a low-complexity propagator based method is proposed. Coprime MIMO radar is configured with transmit and receive rectangular arrays, where
Publikováno v:
IEEE Access, Vol 5, Pp 21139-21147 (2017)
In this paper, we present a complex Hadamard matrix-aided generalized space shift keying (HSSK) modulation scheme, which introduces complex-Hadamard-based signal vectors at the transmitter to provide higher spectrum efficiency than generalized space
Publikováno v:
IEEE Access, Vol 5, Pp 20339-20348 (2017)
We analyze the ergodic capacity of multiple-input multiple-output (MIMO) Rayleigh-fading relay channels. We first derive the probability density function of a sum of independent complex central Wishart matrices—called the central hyper-Wishart matr
Publikováno v:
IEEE Access, Vol 5, Pp 23822-23832 (2017)
Multiple-input multiple-output orthogonal frequency division multiplexing with index modulation (MIMO-OFDM-IM) is a relatively new multicarrier transmission technique for the MIMO systems to achieve both energy and spectral efficiency. However, due t
Publikováno v:
IEEE Access, Vol 5, Pp 8669-8681 (2017)
We investigate the uplink (UL) performance of multicell massive MIMO (maMIMO) communication systems in frequency-selective fading channels, when the channel estimates are corrupted by pilot contamination, and the receiver employs maximum-ratio combin