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Satellites play a vital role in remote communication where traditional communication mediums struggle to provide benefits over associated costs and efficiency. In recent years, satellite communication has achieved utter interest in the…

Cryptography and Security · Computer Science 2023-10-31 Rupok Chowdhury Protik

Once deemed a far-fetched vision, emerging deployments of massive satellite constellations will soon offer true global coverage. When these constellations overlay the evolving terrestrial networks, a new hybrid continuum is formed which has…

Information Theory · Computer Science 2021-06-09 Bassel Al Homssi , Akram Al-Hourani

The Holographic Interference Surface (HIS) provides a new paradigm for building a more cost-effective wireless communication architecture. In this paper, we derive the principles of holographic interference theory for electromagnetic wave…

Signal Processing · Electrical Eng. & Systems 2024-08-12 Jindiao Huang , Yuyao Wu , Haifan Yin , Yuhao Zhang , Ruikun Zhang

This article is on the energy efficient precoder design in multi-user multiple-input-multiple-output (MU-MIMO) systems which is also robust with respect to the imperfect channel state information (CSI) at the transmitters. In other words,…

Information Theory · Computer Science 2018-11-16 Hossein Vaezy , Mohammad Javad Omidi , Halim Yanikomeroglu

Cognitive radio has emerged as one of the most promising candidate solutions to improve spectrum utilization in next generation cellular networks. A crucial requirement for future cognitive radio networks is wideband spectrum sensing:…

Information Theory · Computer Science 2013-03-06 Hongjian Sun , Arumugam Nallanathan , Cheng-Xiang Wang , Yunfei Chen

Advancements in satellite technology have made direct-to-device connectivity a viable solution for ensuring global access. This method is designed to provide internet connectivity to remote, rural, or underserved areas where traditional…

Signal Processing · Electrical Eng. & Systems 2024-07-02 Zohre Mashayekh Bakhsh , Yasaman Omid , Gaojie Chen , Farbod Kayhan , Yi Ma , Rahim Tafazolli

Growing traffic over the high-frequency (HF) band poses significant challenges to establishing robust communication links. While existing spread-spectrum HF transceivers are, to some degree, robust against harsh HF channel conditions, their…

Signal Processing · Electrical Eng. & Systems 2024-09-17 Brandon T. Hunt , Hussein Moradi , Behrouz Farhang-Boroujeny

Channel estimation and hybrid precoding are considered for multi-user millimeter wave massive multi-input multi-output system. A deep learning compressed sensing (DLCS) channel estimation scheme is proposed. The channel estimation neural…

Signal Processing · Electrical Eng. & Systems 2020-02-18 Wenyan Ma , Chenhao Qi , Zaichen Zhang , Julian Cheng

To enable user diversity and multiplexing gains, a fully digital precoding multiple input multiple output (MIMO) architecture is typically applied. However, a large number of radio frequency (RF) chains make the system unrealistic to…

Signal Processing · Electrical Eng. & Systems 2019-12-02 Tongyang Xu , Christos Masouros , Izzat Darwazeh

Efficient satellite communications play an enormously important role in all of our daily lives. This includes the transmission of data for communication purposes, the operation of IoT applications or the provision of data for ground…

Networking and Internet Architecture · Computer Science 2024-11-03 Philippe Krajsic , Viola Suess , Zehong Cao , Ryszard Kowalczyk , Bogdan Franczyk

Symbol-level precoding is a new paradigm for multiuser downlink systems which aims at creating constructive interference among the transmitted data streams. This can be enabled by designing the precoded signal of the multiantenna…

Information Theory · Computer Science 2017-04-12 Maha Alodeh , Symeon Chatzinotas , Bjorn Ottersten

In this paper, we investigate the energy-efficient hybrid precoding design for integrated multicast-unicast millimeter wave (mmWave) system, where the simultaneous wireless information and power transform is considered at receivers. We…

Information Theory · Computer Science 2020-02-12 Wanming Hao , Gangcan Sun , Fuhui Zhou , De Mi , Jia Shi , Pei Xiao , Victor C. M. Leung

In this paper, we investigate secure communication over sparse millimeter-wave (mm-Wave) massive multiple-input multiple-output (MIMO) channels by exploiting the spatial sparsity of legitimate user's channel. We propose a secure…

Information Theory · Computer Science 2019-11-19 Jindan Xu , Wei Xu , Derrick Wing Kwan Ng , A. Lee Swindlehurst

This paper proposes a new large-scale mask-compliant spectral precoder (LS-MSP) for orthogonal frequency division multiplexing systems. In this paper, we first consider a previously proposed mask-compliant spectral precoding scheme that…

Signal Processing · Electrical Eng. & Systems 2019-05-17 Shashi Kant , Gabor Fodor , Mats Bengtsson , Bo Göransson , Carlo Fischione

Digital revolution and recent advances in telecommunications technology enable to design communication systems which operate within the regions close to the theoretical capacity limits. Ever-increasing demand for wireless communications and…

Information Theory · Computer Science 2017-08-01 Ali Rıza Ekti , Ali Boyacı , Altan Alparslan , Ilhami Unal , Serhan Yarkan , Ali Gorcin , Huseyin Arslan , Murat Uysal

Next-generation wireless networks are evolving towards architectures that integrate terrestrial and non-terrestrial networks (NTN), unitedly known as vertical heterogeneous networks (vHetNets). This integration is vital to address the…

Networking and Internet Architecture · Computer Science 2025-03-04 Afsoon Alidadi Shamsabadi , Animesh Yadav , Halim Yanikomeroglu

In future practical deployments of massive multi-input multi-output (MIMO) systems, the number of radio frequency (RF) chains at the base stations (BSs) may be much smaller than the number of BS antennas to reduce the overall expenditure.…

Information Theory · Computer Science 2016-11-15 Jun Zhu , Wei Xu , Ning Wang

Large-scale MIMO systems have been considered as one of the possible candidates for the next-generation wireless communication technique, due to their potential to provide significant higher throughput than conventional wireless systems.…

Information Theory · Computer Science 2014-10-06 Dengkui Zhu , Boyu Li , Ping Liang

The ongoing exponential growth of computational power, and the growth of the commercial High Performance Computing (HPC) industry, has led to a point where ten commercial systems currently exceed the performance of the highest-used HPC…

Instrumentation and Methods for Astrophysics · Physics 2025-09-23 Ian Kemp , Steven J Tingay , Stuart Midgley , Daniel Mitchell

Tomlinson-Harashima precoding (THP) is a nonlinear processing technique employed at the transmit side and is a dual to the successive interference cancelation (SIC) detection at the receive side. Like SIC detection, the performance of THP…

Information Theory · Computer Science 2016-11-15 K. Zu , R. C. de Lamare , M. Haardt