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Communication at millimeter wave (mmWave) bands is expected to become a key ingredient of next generation (5G) wireless networks. Effective mmWave communications require fast and reliable methods for beamforming at both the User Equipment…

Information Theory · Computer Science 2018-06-19 Xiaoshen Song , Saeid Haghighatshoar , Giuseppe Caire

Orbital angular momentum (OAM) at radio frequency (RF) provides a novel approach of multiplexing a set of orthogonal modes on the same frequency channel to achieve high spectrum efficiencies. However, there are still big challenges in the…

Signal Processing · Electrical Eng. & Systems 2020-07-07 Rui Chen , Wen-Xuan Long , Xiaodong Wang , Jiandong Li

Wireless backhaul offers a more cost-effective, time-efficient, and reconfigurable solution than wired backhaul to connect the edge-computing cells to the core network. As the amount of transmitted data increases, the low-rank…

Information Theory · Computer Science 2023-12-05 Yufei Zhao , Ziyang Wang , Yilong Lu , Yong Liang Guan

To further improve the system capacity for 5G, we explore the integration of non-orthogonal multiple access (NOMA) in mmWave communications (mmWave-NOMA) for future 5G systems. Compared with the conventional NOMA, the distinguishing feature…

Information Theory · Computer Science 2017-09-26 Zhenyu Xiao , Linglong Dai , Zhiguo Ding , Jinho Choi , Pengfei Xia

There is considerable interest in the combined use of millimeter-wave (mmwave) frequencies and arrays of massive numbers of antennas (massive MIMO) for next-generation wireless communications systems. A symbiotic relationship exists between…

Information Theory · Computer Science 2017-12-19 Amine Mezghani , A. Lee Swindlehurst

Spatial division multiplexing using conventional orbital angular momentum (OAM) has become a well-known physical layer transmission method over the past decade. The mode-group (MG) superposed by specific single mode plane spiral OAM (PSOAM)…

Signal Processing · Electrical Eng. & Systems 2021-03-12 Xiaowen Xiong , Shilie Zheng , Zelin Zhu , Yuqi Chen , Hongzhe Shi , Bingchen Pan , Cheng Ren , Xianbin Yu , Xiaofeng Jin , Wei E. I. Sha , Xianmin Zhang

Time, polarization, and wavelength multiplexing schemes have been used to satisfy the growing need of transmission capacity. Using space as a new dimension for communication systems has been recently suggested as a versatile technique to…

Information Theory · Computer Science 2019-03-05 Abderrahmen Trichili , Ki-Hong Park , Mourad Zghal , Boon S. Ooi , Mohamed-Slim Alouini

This work proposes the use of orbital angular momentum (OAM) waves to improve the performance of a computational imaging (CI) system. Specifically, in contrast to a solely frequency-diverse operation, leveraging multiple OAM waves leads to…

Using out-of-band (OOB) side-information has recently been shown to accelerate beam selection in single-user millimeter wave (mmWave) massive MIMO communications. In this paper, we propose a novel OOB-aided beam selection framework for a…

Signal Processing · Electrical Eng. & Systems 2019-04-01 Flavio Maschietti , David Gesbert , Paul de Kerret

Orbital angular momentum (OAM) at radio frequency (RF) has attracted more and more attention as a novel approach of multiplexing a set of orthogonal OAM modes on the same frequency channel to achieve high spectral efficiency (SE). However,…

Information Theory · Computer Science 2021-12-02 Zhengjuan Tian , Rui Chen , Wen-Xuan Long , Hong Zhou , Marco Moretti

Millimeter Wave (mmWave) band provides a large spectrum to meet the high-demand capacity by the 5th generation (5G) wireless networks. However, to fully exploit the available spectrum, obstacles such as high path loss, channel sparsity, and…

Information Theory · Computer Science 2018-07-16 Mojtaba Ahmadi Almasi , Roohollah Amiri , Hani Mehrpouyan

The plane wave based wireless communications have becoming more and more matured, along with the well utilization of the traditional resources such as time and frequency. To further increase the capacity for rapidly increasing capacity…

Signal Processing · Electrical Eng. & Systems 2024-08-14 Haiyue Jing , Wenchi Cheng , Xiang-Gen Xia , Hailin Zhang

Communication at millimeter wave (mmWave) frequencies is defining a new era of wireless communication. The mmWave band offers higher bandwidth communication channels versus those presently used in commercial wireless systems. The…

Information Theory · Computer Science 2016-05-04 Robert W. Heath , Nuria Gonzalez-Prelcic , Sundeep Rangan , Wonil Roh , Akbar Sayeed

The large spectrum available in the millimeter-Wave (mmWave) band has emerged as a promising solution for meeting the huge capacity requirements of the 5th generation (5G) wireless networks. However, to fully harness the potential of mmWave…

Information Theory · Computer Science 2018-03-28 Mojtaba Ahmadi Almasi , Hani Mehrpouyan , Vida Vakilian , Nader Behdad , Hamid Jafarkhani

The millimeter-wave (mmWave) communication technology, which employs large-scale antenna arrays, enables inherent sensing capabilities. Simultaneous localization and mapping (SLAM) can utilize channel multipath angle estimates to realize…

Information Theory · Computer Science 2023-07-18 Hang Que , Jie Yang , Chao-Kai Wen , Shuqiang Xia , Xiao Li , Shi Jin

Millimeter wave (mmWave) communication with large array gains is a key ingredient of next generation (5G) wireless networks. Effective communication in mmWaves usually depends on the knowledge of the channel. We refer to the problem of…

Information Theory · Computer Science 2017-11-30 Xiaoshen Song , Saeid Haghighatshoar , Giuseppe Caire

Hybrid beamforming is considered a key enabler to realize millimeter wave (mmWave) multiple-input multiple-output (MIMO) communications due to its capability of considerably reducing the number of costly and power-hungry radio frequency…

Signal Processing · Electrical Eng. & Systems 2021-08-25 Mengyuan Ma , Nhan Thanh Nguyen , Markku Juntti

A central question in free-space optical communications is how to improve the transfer of information between a transmitter and receiver. The capacity of the communication channel can be increased by multiplexing of independent modes using…

Signal Processing · Electrical Eng. & Systems 2019-12-06 Liliana Borcea , Josselin Garnier , Knut Solna

Movable antenna (MA) has demonstrated great potential in enhancing wireless communication performance. In this paper, we investigate an MA-enabled multiple-input multiple-output (MIMO) communication system with spatial modulation (SM),…

Signal Processing · Electrical Eng. & Systems 2026-01-21 Kaihe Wang , Ran Yang , Lipeng Zhu , Rongyan Xi , Yue Xiu , Zhongpei Zhang

With the explosive growth of mobile data demand, the fifth generation (5G) mobile network would exploit the enormous amount of spectrum in the millimeter wave (mmWave) bands to greatly increase communication capacity. There are fundamental…

Networking and Internet Architecture · Computer Science 2015-02-26 Yong Niu , Yong Li , Depeng Jin , Li Su , Athanasios V. Vasilakos