Zobrazeno 1 - 10
of 53
pro vyhledávání: '"Amit Kumar Kohli"'
Publikováno v:
International Journal of Antennas and Propagation, Vol 2012 (2012)
The proposed technique combines a slot antenna and a dielectric resonator antenna (DRA) to effectively design a dual band dielectric resonant antenna without compromising miniaturization or its efficiency. It is observed that the resonance of the slo
Externí odkaz:
https://doaj.org/article/9af5bd3281e34e4ea2b42906c91c7f94
Autor:
Amit Kumar Kohli, Divneet Singh Kapoor
Publikováno v:
Arabian Journal for Science and Engineering. 46:9451-9464
This paper presents an adaptive-slope squashing-function (ASF)-based artificial neural network (ANN) for efficient estimation of smoothly time-varying multipath fading channels, in a $$4 \times 1$$ space-frequency-block-coded orthogonal-frequency-div
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::43b0caac873a98559358d5b339e5a62e
https://doi.org/10.1007/s13369-020-05207-w
https://doi.org/10.1007/s13369-020-05207-w
Autor:
Amit Kumar Kohli, Jashu Sharma
Publikováno v:
Wireless Personal Communications. 114:3489-3506
This paper presents a nonlinear-acoustic-echo-cancellation (NAEC) technique to tackle sigmoid-type nonlinearities under noisy environment. The nonlinear echo in acoustic systems is inevitable due to the inherent nonlinear characteristics of amplifier
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3d72c62264ebb39030fa76f2f569c19c
https://doi.org/10.1007/s11277-020-07544-3
https://doi.org/10.1007/s11277-020-07544-3
Autor:
Amit Kumar Kohli, Divneet Singh Kapoor
Publikováno v:
Intelligent Automation & Soft Computing. 26:439-446
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::72397d4481ea2b5c9f6c2b9ef19d2dae
https://doi.org/10.32604/iasc.2020.013920
https://doi.org/10.32604/iasc.2020.013920
Autor:
Amit Kumar Kohli, Divneet Singh Kapoor
Publikováno v:
Arabian Journal for Science and Engineering. 45:1749-1763
This correspondence presents the bit-error-rate (BER) performance analysis of the space-frequency-block-coded OFDM (SFBC–OFDM) communication systems, working over wireless fading channels under the impulsive environment. The effects of imperfect ch
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::acc874ab48f3011efcc718a5e123b717
https://doi.org/10.1007/s13369-019-04230-w
https://doi.org/10.1007/s13369-019-04230-w
Autor:
Amit Kumar Kohli, Divneet Singh Kapoor
Publikováno v:
2020 12th International Conference on Computational Intelligence and Communication Networks (CICN).
This correspondence emphasises on the usage of softsign squashing function in the ANN based channel estimation (in frequency-domain) for SFBC-OFDM system. The softsign based approach outperforms the hyperbolic tangent squashing function by providing
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3b3906c521cb29e4876180722dc573aa
https://doi.org/10.1109/cicn49253.2020.9242638
https://doi.org/10.1109/cicn49253.2020.9242638
Autor:
Gaganjot Singh Lamba, Amit Kumar Kohli
Publikováno v:
Optik. 169:382-391
In this correspondence, we present the performance evaluation of a low-complexity fast – orthogonal–frequency–division–multiplexing (F–OFDM) scheme, in the presence of phase-noise (PHN), working under the generic linear fading channels (lik
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4af0c45080e2f702213e7bbca2d46324
https://doi.org/10.1016/j.ijleo.2018.05.079
https://doi.org/10.1016/j.ijleo.2018.05.079
Autor:
Divneet Singh Kapoor, Amit Kumar Kohli
Publikováno v:
International Journal of Electronics. 105:1451-1466
This correspondence presents the channel estimation and long-range prediction technique for adaptive-orthogonal-frequency-division-multiplexing (AOFDM) system. The efficient channel loading is accomplished by feeding the accurately predicted channel-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ab948dfa4288be471e8fd7181b39f472
https://doi.org/10.1080/00207217.2018.1460871
https://doi.org/10.1080/00207217.2018.1460871
High-Rate STBC Communication System Using Imperfect CSI Under Time-Selective Flat-Fading Environment
Autor:
Amit Kumar Kohli, Sonali Garg
Publikováno v:
Wireless Personal Communications. 99:1231-1245
In this paper, a high-rate space-time block-coded (STBC) mobile communication system using imperfect channel-state-information (CSI) is presented, which is working over the time-selective flat-fading wireless channels. In the work, a flat-fading chan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fc9415fae36260707d94fa58c72f796e
https://doi.org/10.1007/s11277-017-5182-3
https://doi.org/10.1007/s11277-017-5182-3
Autor:
Amit Kumar Kohli, Rohit Garg
Publikováno v:
Optik. 127:10953-10960
In this paper, we present the performance evaluation of different variable-step-size (VSS) least-mean-square (LMS) algorithms, which are used for parameter estimation of sinusoidal signals in sensor networks. The VSS in LMS algorithm is not only vari
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::345c17d23d51a132e6df6d187e78ec60
https://doi.org/10.1016/j.ijleo.2016.09.020
https://doi.org/10.1016/j.ijleo.2016.09.020