Zobrazeno 1 - 10
of 65
pro vyhledávání: '"Santipach, Wiroonsak"'
Autor:
Santipach, Wiroonsak
We consider non-orthogonal multiple access (NOMA) downlink with a multiple-antenna base station (BS) and single-antenna mobile users. Cell-edge users that are blocked from the BS are assisted by intelligent reflective surface (IRS) for data reception
Externí odkaz:
http://arxiv.org/abs/2301.10963
Autor:
Mamat, Kritsada, Santipach, Wiroonsak
Publikováno v:
IEEE Transactions on Communications, vol. 71, no. 4, pp. 2028-2041, April 2023
In downlink, a base station (BS) with multiple transmit antennas applies zeroforcing beamforming to transmit to single-antenna mobile users in a cell. We propose the schemes that optimize transmit power and the number of bits for channel direction in
Externí odkaz:
http://arxiv.org/abs/2301.10435
Autor:
Kyaw, Khin Thandar a, Santipach, Wiroonsak a, ⁎, Mamat, Kritsada b, Kaemarungsi, Kamol c, Fukawa, Kazuhiko d, Wuttisittikulkij, Lunchakorn e
Publikováno v:
In AEUE - International Journal of Electronics and Communications February 2025 191
Publikováno v:
Physical Communication, vol. 39, 101015, Apr. 2020
We propose a bit-allocation scheme for powerline orthogonal frequency-division multiplexing (OFDM) that minimizes total transmit energy subject to total-bit and delay constraints. Multiple delay requirements stem from different sets of data that a tr
Externí odkaz:
http://arxiv.org/abs/2001.03282
We consider downlink OFDMA in which users are imposed with different proportional-rate constraints, and a base station would like to maximise user rate over subcarrier assignment (SA) and power allocation (PA). To attain the objective, we propose a c
Externí odkaz:
http://arxiv.org/abs/1707.06774
Autor:
Mamat, Kritsada, Santipach, Wiroonsak
Publikováno v:
IEEE Trans. Commun., vol. 66, no. 8, pp. 3407 - 3419, Aug. 2018
A receiver with perfect channel state information (CSI) in a point-to-point multiple-input multiple-output (MIMO) channel can compute the transmit beamforming vector that maximizes the transmission rate. For frequency-division duplex, a transmitter i
Externí odkaz:
http://arxiv.org/abs/1703.03499
Publikováno v:
In Digital Communications and Networks April 2022 8(2):194-207
Publikováno v:
IEEE Communications Letters, vol. 20, no. 8, pp. 1675 - 1678, Aug. 2016
We consider downlink max-based scheduling in which the base station and each user are equipped with a single antenna. In each time slot, the base station obtains channel gains of all users and selects the user with the largest squared channel gain. A
Externí odkaz:
http://arxiv.org/abs/1510.04374
Autor:
Khichar, Sunita, Santipach, Wiroonsak, Wuttisittikulkij, Lunchakorn, Parnianifard, Amir, Chaudhary, Sushank
Publikováno v:
Journal of Sensor & Actuator Networks; Oct2024, Vol. 13 Issue 5, p55, 17p
Autor:
Mamat, Kritsada, Santipach, Wiroonsak
Publikováno v:
IEEE Transactions on Communications, vol. 63, no. 11, pp. 4202 - 4213, Nov. 2015
With finite-rate feedback, we propose two feedback methods for transmit beamforming in a point-to-point MISO-OFDM channel. For the first method, a receiver with perfect channel information, quantizes and feeds back the optimal transmit beamforming ve
Externí odkaz:
http://arxiv.org/abs/1410.1274