Performance Improvement for Multi-User Millimeter-Wave Massive MIMO Systems

Published on May 12, 2020in IEEE Access3.745
· DOI :10.1109/ACCESS.2020.2994176
Diego Fernando Carrera3
Estimated H-index: 3
(Tec: Monterrey Institute of Technology and Higher Education),
Cesar Vargas-Rosales13
Estimated H-index: 13
(Tec: Monterrey Institute of Technology and Higher Education)
+ 1 AuthorsJose Alejandro Galaviz-Aguilar4
Estimated H-index: 4
(Tec: Monterrey Institute of Technology and Higher Education)
In this paper, we study the problem of optimizing the performance of multi-user millimeter-wave (mmWave) communications in three steps. The first one is given by the use of a new pilot mapping to reduce the inter-user interference effect and to perform more accurate channel estimation. In the second step, we designed a hybrid receiver that, based on the accuracy of the channel state information, chooses between the minimum mean square error (MMSE) and the multi-user regularized zero-forcing beamforming (RZFBF) receivers, to combine/precode the massive multiple-input multiple-output (MIMO) signal. In the third step, we propose to improve the beam direction with a slight change in the azimuth angle during the uplink communications to increase the multi-user efficiency and reduce inter-user interference. Numerical results show the performance increase using the proposed solutions in terms of the spectral efficiency by comparing the MMSE, RZFBF, and hybrid receivers.
📖 Papers frequently viewed together
12 Citations
2017ASILOMAR: Asilomar Conference on Signals, Systems and Computers
5 Citations
2017ICC: International Conference on Communications
4 Citations
#1Xiaoshen Song (Technical University of Berlin)H-Index: 5
#2Thomas Kuhne (Technical University of Berlin)H-Index: 6
Last. Giuseppe Caire (Technical University of Berlin)H-Index: 80
view all 3 authors...
Hybrid digital analog (HDA) beamforming has attracted considerable attention in practical implementation of millimeter wave (mmWave) multiuser multiple-input multiple-output (MU-MIMO) systems due to the low power consumption with respect to its fully digital baseband counterpart. The implementation cost, performance, and power efficiency of HDA beamforming depends on the level of connectivity and reconfigurability of the analog beamforming network. In this paper, we investigate the performance o...
15 CitationsSource
#1Diego Fernando Carrera (Tec: Monterrey Institute of Technology and Higher Education)H-Index: 3
#2Cesar Vargas-Rosales (Tec: Monterrey Institute of Technology and Higher Education)H-Index: 13
Last. Jose Alejandro Galaviz-Aguilar (Tec: Monterrey Institute of Technology and Higher Education)H-Index: 4
view all 4 authors...
In this work, a comparative analysis is performed to study the bit error rate and error vector magnitude achieved with the least-squares (LS), the minimum mean squared error (MSE), and the Kalman filter (KF) channel estimators when these are applied to the maximum-ratio combining (MRC) and the regularised zero-forcing (RZF) receivers. The MSE achieved with the different channel estimators was also compared by varying the noise and interference power at the receiver. The proposed methodology reli...
5 CitationsSource
#1Behrooz Makki (Ericsson)H-Index: 18
#2Krishna Chitti (Ericsson)H-Index: 4
Last. Mohamed-Slim Alouini (KAUST: King Abdullah University of Science and Technology)H-Index: 4
view all 4 authors...
Non-orthogonal multiple access (NOMA) has been considered as a study-item in 3GPP for 5G new radio (NR). However, it was decided not to continue with it as a work-item, and to leave it for possible use in beyond 5G. In this paper, we first review the discussions that ended in such decision. Particularly, we present simulation comparisons between the Welch-bound equality spread multiple access (WSMA)-based NOMA and multi-user multiple-input-multiple-output (MU-MIMO), where the possible gain of WS...
83 CitationsSource
#1Jun Zhang (PolyU: Hong Kong Polytechnic University)H-Index: 1
#1Jun Zhang (PolyU: Hong Kong Polytechnic University)H-Index: 119
Last. Khaled Ben Letaief (HKUST: Hong Kong University of Science and Technology)H-Index: 80
view all 3 authors...
Millimeter-wave (mm-wave) communication is a key technology for future wireless networks. To combat significant path loss and exploit the abundant mm-wave spectrum, effective beamforming is crucial. Nevertheless, conventional fully digital beamforming techniques are inapplicable, as they demand a separate radio frequency (RF) chain for each antenna element, which is costly and consumes too much energy. Hybrid beamforming is a cost-effective alternative, which can significantly reduce the hardwar...
16 CitationsSource
#1Luca Sanguinetti (UniPi: University of Pisa)H-Index: 28
#2Emil Björnson (Linköping University)H-Index: 60
Last. Jakob Hoydis (Bell Labs)H-Index: 31
view all 3 authors...
Since the seminal paper by Marzetta from 2010, Massive MIMO has changed from being a theoretical concept with an infinite number of antennas to a practical technology. The key concepts are adopted into the 5G New Radio Standard and base stations (BSs) with M=64fully digital transceivers have been commercially deployed in sub-6GHz bands. The fast progress was enabled by many solid research contributions of which the vast majority assume spatially uncorrelated channels and signal processing sch...
86 CitationsSource
#1Shao-Yu Lien (CCU: National Chung Cheng University)H-Index: 21
#2Der-Jiunn Deng (NCUE: National Changhua University of Education)H-Index: 25
Last. Shin-Ming Cheng (NTUST: National Taiwan University of Science and Technology)H-Index: 19
view all 7 authors...
Featuring direct communications between two user equipments (UEs) without signal relay through a base station, 3GPP sidelink transmissions have manifested their crucial roles in the Long-Term Evolution (LTE) Advanced (LTE-A) for public safety and vehicle-to-everything (V2X) services. With this successful development in LTE-A, the evolution of sidelink transmissions continues in 3GPP New Radio (NR), which renders sidelink an inevitable component as well as downlink and uplink. Targeting at offeri...
24 CitationsSource
#1Xingqin LinH-Index: 23
#2Asbjörn GrövlenH-Index: 5
Last. Sorour FalahatiH-Index: 10
view all 11 authors...
The fifth generation (5G) wireless access technology, known as New Radio (NR), will address a variety of usage scenarios from enhanced mobile broadband to ultra-reliable low-latency communications to massive machine type communications. Key technology features include ultra-lean transmission, support for low latency, advanced antenna technologies, and spectrum flexibility including operation in high frequency bands and inter-working between high and low frequency bands. This article provides an ...
74 CitationsSource
#1Lipeng Zhu (Beihang University)H-Index: 9
#2Zhenyu Xiao (Beihang University)H-Index: 9
Last. Dapeng Oliver Wu (UF: University of Florida)H-Index: 22
view all 4 authors...
In order to further improve the system capacity, we explore the integration of non-orthogonal multiple access (NOMA) in millimeter-wave communications (mmWave-NOMA) for future B5G and 6G systems. Compared with the conventional NOMA, the distinguishing feature of mmWave-NOMA is that, it is usually characterized by transmit/receive beamforming with large phased arrays. In this paper, we focus on the design challenges of mmWave-NOMA due to beamforming. Firstly, we study how beamforming affects the ...
57 CitationsSource
#1Anthony Ngozichukwuka Uwaechia (Universiti Sains Malaysia)H-Index: 7
#2Nor Muzlifah Mahyuddin (Universiti Sains Malaysia)H-Index: 8
Last. Nor Farahidah Za'bah (IIUM: International Islamic University Malaysia)H-Index: 6
view all 5 authors...
Millimeter wave (mmWave) multiple-input-multiple-output (MIMO) systems will almost certainly use hybrid precoding to realize beamforming with few numbers of RF chains to reduce energy consumption, but require low complexity technique to improve spectral efficiency. While energy-efficient hybrid analog/digital precoders and combiners designs can subdue the high pathloss inherent in mmWave channels, they assume the use of infinite- (or high-) resolution phase shifters to realize the analog precode...
9 CitationsSource
#1Long D. Nguyen ('QUB': Queen's University Belfast)H-Index: 11
#2Hoang Duong Tuan (UTS: University of Technology, Sydney)H-Index: 48
Last. H. Vincent Poor (Princeton University)H-Index: 104
view all 4 authors...
Regularized zero-forcing beamforming (RZFB) is an interesting class of linear signal processing problems, which is very attractive for use in large-scale communication networks due its simple visualization as a straightforward extension of the well-accepted zero-forcing beamforming (ZFB). However, unlike ZFB, which is multi-user interference free, RZFB must manage multi-user interference to achieve its high throughput performance. Most existing works focus on the performance analysis of particul...
16 CitationsSource
Cited By4
#2Cesar Vargas-Rosales (Tec: Monterrey Institute of Technology and Higher Education)H-Index: 13
Last. Marco Morocho-Yaguana (UTPL: Universidad Técnica Particular de Loja)H-Index: 1
view all 4 authors...
Abstract null null In this paper, we present an extreme learning machine (ELM) neural network designed to perform multiple-input multiple-output (MIMO) detection for millimeter-wave (mm-wave) communications operating in the 28 GHz frequency band. The ELM strategy can perform online MIMO combining processing. This method does not require offline training like with deep neural networks. The proposed technique was compared in terms of the achievable bit error rate (BER) and spectral efficiency (SE)...
Last. R. Madhu (Jawaharlal Nehru Technological University, Hyderabad)H-Index: 3
view all 2 authors...
The massive multiple-input multiple-output (massive MIMO) system is the major section of the fifth generation (5G) future wireless cellular systems. It consists of hundreds of antennas in the base station that serves more number of users, concurrently. Thus, this system will get optimized energy usage, high data rate, and more precision because of their larger degrees of freedom. The computation power to the total power consumption ratio is considered for rapid increment owing to the more data t...
#1Xiu Zhang (Tianjin Normal University)H-Index: 7
#1Xiu Zhang (Tianjin Normal University)H-Index: 10
Last. Liang HanH-Index: 4
view all 4 authors...
Higher requirements must be put forward about wireless signal transmission in harsh environments. Energy loss mitigation, channel estimation, noise interference reduction demands high quality of service in wireless communication. In the fifth generation wireless communication, massive multiple-input multiple-output (MIMO) networks have been used and play a significant role to fulfill the requirements. Cell-Free massive MIMO networks are recognized as possible solution in the future wireless comm...
1 CitationsSource