Asymptotic capacity analysis under different adaptive transmission for TAS/MRC MIMO scheme subject to Weibull fading channels

Chaayra, Toufik; Bouanani, Faïssal El; Ben-Azza, Hussain

doi:10.1016/j.phycom.2019.100743

Cited by 3 publications

(4 citation statements)

References 20 publications

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“…To analyze the behavior of far user at high SNR, we perform asymptotic analysis of the average BER expression obtained in (19).…”

Section: Ber Performance Of Far Usermentioning

confidence: 99%

“…Corollary 1. For asymptotic analysis, we consider only the first term of all sums in (19) with γ f ! ∞ and P f = 1 which leads to…”

Section: Ber Performance Of Far Usermentioning

confidence: 99%

“…with terms T f and P f , f ¼ a,b given in (19). We rewrite the expression of P f in terms of Gauss hypergeometric function 36 and obtain an upper bound of the truncation error 37 in case of far user given by…”

Section: Evaluation Of Truncation Errormentioning

confidence: 99%

“…It is also shown that exploring antenna selection at the transmitter side leads to improvement in diversity order. Chaayra et al 19 have evaluated the average channel capacity for adaptive transmission in TAS system. With regard to OSTBC, Tarokh et al 20 have described that remarkable performance improvement is achieved by using OSTBC in MIMO systems.…”

Section: Introductionmentioning

confidence: 99%

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Error analysis of TAS‐OSTBC assisted downlink NOMA system over generalized η−μ fading Channel

Mukhtar

Begh

2022

Int J Communication

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Summary Incorporation of multiple antennas in downlink non‐orthogonal multiple access (NOMA) system helps in achieving better performance by exploiting different diversity schemes. To this end, we propose a general framework of transmit antenna selection (TAS)‐assisted orthogonal space‐time block code (OSTBC) transmission for multiple NOMA users. We derive exact expressions of probability density function of the TAS‐OSTBC processed signal‐to‐noise ratio (SNR) at the output of maximum‐ratio combiner of the NOMA users. Using well‐known moment generating function approach, we evaluate the error performance of TAS‐OSTBC assisted NOMA users over generalized η−μ fading channel in presence of perfect and imperfect successive interference cancelation. We investigate the proposed system in different multi‐antenna scenarios and accordingly observe better error performance of the users by increasing the number of transmit and receive antennas. We perform their asymptotic analysis leading to full‐diversity order at high SNR. For numerical evaluation, we truncate the infinite series in derived results and examine the upper bound of truncation error. We evaluate nth moment of the output SNR and obtain channel quality estimation index as a performance measure of the proposed NOMA system. Moreover, we investigate the influence of power coefficients and fading parameters, η and μ, on the error performance of TAS‐OSTBC‐assisted NOMA users. We also compare the derived error performances with the existing schemes, wherein we observe that the proposed system shows remarkable improvement in the bit error rate (BER) of the NOMA users. For validation, we execute simulations which closely match with the derived analytical results.

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“…To analyze the behavior of far user at high SNR, we perform asymptotic analysis of the average BER expression obtained in (19).…”

Section: Ber Performance Of Far Usermentioning

confidence: 99%

“…Corollary 1. For asymptotic analysis, we consider only the first term of all sums in (19) with γ f ! ∞ and P f = 1 which leads to…”

Section: Ber Performance Of Far Usermentioning

confidence: 99%