Results 1 to 10 of about 33,097 (233)
Symbol Based Precoding in The Downlink of Cognitive MISO Channels [PDF]
, 2015 This paper proposes symbol level precoding in the downlink of a MISO cognitive system. The new scheme tries to jointly utilize the data and channel information to design a precoding that minimizes the transmit power at a cognitive base station (CBS ...
A Goldsmith +6 more
core +4 more sources
Efficient Constant Envelope Precoding for Massive MU-MIMO Downlink via Majorization-Minimization Method [PDF]
EntropyThe practical implementation of massive multi-user multi-input–multi-output (MU-MIMO) downlink communication systems power amplifiers that are energy efficient; otherwise, the power consumption of the base station (BS) will be prohibitive.
Rui Liang +3 more
doaj +2 more sources
Low complexity precoding codebook design based on DFRST for limited feedback precoded OSTBC systems [PDF]
EURASIP Journal on Wireless Communications and Networking, 2017 Precoding techniques can be used in multiple input multiple output (MIMO) system to assign resources such as power and information optimally. This paper is concerned with limited feedback in precoded orthogonal space time block code (OSTBC) systems ...
Han Hai +3 more
doaj +3 more sources
Hybrid Precoding for mmWave MIMO Systems With Overlapped Subarray Architecture
IEEE Access, 2022 Traditional precoding is incompatible with millimetre wave (mmWave) multiple input multiple output (MIMO) systems due to hardware costs and power consumption.
Faisal Al-Kamali +2 more
doaj +1 more source
Low-Complexity Hybrid Precoding for Subarray Architecture mmWave MIMO Systems
IEEE Access, 2022 Hybrid precoding for millimeter wave (mmWave) multiple-input multiple-output (MIMO) systems has attracted much attention in recent years for subarray architecture compared to array architecture because of its low cost and low power consumption.
Faisal Al-Kamali, Claude D'amours
doaj +1 more source
Antenna Selection and Precoding Joint Algorithm in CoMP System [PDF]
Jisuanji gongcheng, 2017 Aiming at the problem that too many antennas of large-scale Multiple Input Multiple Output(MIMO) system increases the amount of calculation of precoding algorithm,this paper adopts the method combining antenna selection algorithm with traditional ...
CHANG Youbao,GE Wenping,HAN Qianfang
doaj +1 more source
Precoder Distribution and Adaptive Codebook in Wideband Precoding [PDF]
ETRI Journal, 2012 Based on wideband precoding (WBP) in the multiple-input multiple-output orthogonal frequency division multiplexing system, an adaptive nonuniform codebook is presented in this paper. The relationship between the precoder distribution and spatial correlation is analyzed at first.
Long, Hang +5 more
openaire +2 more sources
ICT Express, 2021 Mmillimeter-wave (mmWave) massive multiuser multiple-input multiple-output (MU-MIMO) system usually utilizes hybrid precoding to reduce complex hardware and high energy consumption.
Ting Ding, Yongjun Zhao, Lei Zhang
doaj +1 more source
Linear Precoded Index Modulation [PDF]
IEEE Transactions on Communications, 2019 Index modulation (IM) is an attractive concept for next generation communication systems. However, as an emerging technique, there are still some challenges need to be tackled in this frontier. In this paper, we consider two aspects of IM, which are diversity and detection complexity.
Hongming Zhang +4 more
openaire +4 more sources
Hybrid Precoding Algorithm for High Spectral Efficiency in mm-Wave MIMO Systems
Guangtongxin yanjiu, 2022 In mm-wave massive Multiple Input Multiple Output (MIMO) systems, in order to further improve the spectral efficiency of hybrid precoding in fully connected structure, an Alternate Minimization based on Gradient Descent (GD-AltMin) hybrid precoding ...
Wei ZHOU, Qiu-yan YANG
doaj +3 more sources