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The concept of reconfiguring wireless propagation environments using intelligent reflecting surfaces (IRS)s has recently emerged, where an IRS comprises of a large number of passive reflecting elements that can smartly reflect the impinging…

Information Theory · Computer Science 2020-05-05 Qurrat-Ul-Ain Nadeem , Hibatallah Alwazani , Abla Kammoun , Anas Chaaban , Merouane Debbah , Mohamed-Slim Alouini

Obtaining accurate channel state information (CSI) is crucial and challenging for multiple-input multiple-output (MIMO) wireless communication systems. Conventional channel estimation method cannot guarantee the accuracy of mobile CSI while…

Signal Processing · Electrical Eng. & Systems 2022-07-25 Zhuoran Xiao , Zhaoyang Zhang , Zirui Chen , Zhaohui Yang , Richeng Jin

The tremendous bandwidth available in the millimeter wave (mmW) frequencies between 30 and 300 GHz have made these bands an attractive candidate for next-generation cellular systems. However, reliable communication at these frequencies…

Information Theory · Computer Science 2014-10-20 Parisa A. Eliasi , Sundeep Rangan , Theodore S. Rappaport

Wireless communication applications has acquired a vastly increasing range over the past decade. This rapidly increasing demand implies limitations on utilizing wireless resources. One of the most important resources in wireless…

Signal Processing · Electrical Eng. & Systems 2019-04-01 Mohammadreza Mousaei

In existing communication systems, the channel state information of each UE (user equipment) should be repeatedly estimated when it moves to a new position or another UE takes its place. The underlying ambient information, including the…

Signal Processing · Electrical Eng. & Systems 2019-03-26 Chunxu Jiao , Zhaoyang Zhang , Caijun Zhong , Xiaoming Chen , Zhiyong Feng

In dynamic wireless environments, accurate channel state information (CSI) prediction remains challenging due to non-stationary fading, mobility. This paper proposes an Uncertainty-Weighted Experience Replay (UW-ER) framework that…

Signal Processing · Electrical Eng. & Systems 2026-04-16 Muhammad Jazib Qamar , Muhammad Hamza Nawaz , Messaoud Ahmed Ouameur , Ayesha Mohsin , Miloud Bagaa

We analyze a cooperative wireless communication system with finite block length and finite battery energy, under quasi-static Rayleigh fading. Source and relay nodes are powered by a wireless energy transfer (WET) process, while using the…

Information Theory · Computer Science 2018-01-03 Onel L. A. López , Evelio M. G. Fernández , Richard D. Souza , Hirley Alves

Reconfigurable intelligent surface (RIS) is a newly-emerged technology that, with its unique features, is considered to be a game changer for future wireless networks. Channel estimation is one of the most critical challenges for the…

Signal Processing · Electrical Eng. & Systems 2023-03-30 Mehdi Haghshenas , Parisa Ramezani , Emil Björnson

The performance of low-power wireless sensing networks can be influenced by both external environmental factors and internal imperfections which often arise due to manufacturing tolerance during mass production. Understanding the conditions…

Networking and Internet Architecture · Computer Science 2026-03-24 Zegeye Mekasha Kidane , Waltenegus Dargie

One of the most critical aspects of enabling next-generation wireless technologies is developing an accurate and consistent channel model to be validated effectively with the help of real-world measurements. From this point of view,…

Signal Processing · Electrical Eng. & Systems 2022-01-19 Ibrahim Yildirim , Ertugrul Basar

The advent of Artificial Intelligence (AI) has impacted all aspects of human life. One of the concrete examples of AI impact is visible in radio positioning. In this article, for the first time we utilize the power of AI by training a…

Signal Processing · Electrical Eng. & Systems 2022-06-29 Ghazaleh Kia , Laura Ruotsalainen , Jukka Talvitie

Cognitive radio (CR) is a promising technology enabling efficient utilization of the spectrum resource for future wireless systems. As future CR networks are envisioned to operate over a wide frequency range, advanced wideband spectrum…

Signal Processing · Electrical Eng. & Systems 2021-05-10 Jun Fang , Bin Wang , Hongbin Li , Ying-Chang Liang

Accurate and efficient acquisition of wireless channel state information (CSI) is crucial to enhance the communication performance of wireless systems. However, with the continuous densification of wireless links, increased channel…

Signal Processing · Electrical Eng. & Systems 2025-07-09 Yuelong Qiu , Di Wu , Yong Zeng , Yanqun Tang , Nan Cheng , Chenhao Qi

In the expanding field of the Internet of Things (IoT), wireless channel estimation is a significant challenge. This is specifically true for low-power IoT (LP-IoT) communication, where efficiency and accuracy are extremely important. This…

Signal Processing · Electrical Eng. & Systems 2024-04-25 Samrah Arif , M. Arif Khan , Sabih Ur Rehman

This study presents an advanced wireless system that embeds target recognition within reconfigurable intelligent surface (RIS)-aided communication systems, powered by cuttingedge deep learning innovations. Such a system faces the challenge…

Information Theory · Computer Science 2025-05-06 Yixuan Huang , Jie Yang , Chao-Kai Wen , Shuqiang Xia , Xiao Li , Shi Jin

Intelligent reflecting surfaces (IRSs) tune wireless environments to increase spectrum and energy efficiencies. In view of much recent attention to the IRS concept as a promising technology for 6G wireless communications, we present a…

Signal Processing · Electrical Eng. & Systems 2019-11-05 Jun Zhao

Processing the exponentially growing amount of data produced daily requires efficient communication between different processing units in a computer. Traditionally, wired interconnects have been used to maintain these data links due to…

Signal Processing · Electrical Eng. & Systems 2025-07-22 Mohammadreza F. Imani , Alexander L. Colson , Leslie K. Miller , Jorge A. Valdez , Jose C. Sanchez , Richard F. Rader

In this survey paper, our goal is to discuss recent advances of compressive sensing (CS) based solutions in wireless sensor networks (WSNs) including the main ongoing/recent research efforts, challenges and research trends in this area. In…

Signal Processing · Electrical Eng. & Systems 2019-01-23 Thakshila Wimalajeewa , Pramod K. Varshney

In this paper, we consider a green cloud radio access network (C-RAN) with simultaneous wireless and power transfer ability. In order to reduce the energy consumed for updating the chanel state information (CSI), energy users are divided…

Networking and Internet Architecture · Computer Science 2018-03-30 Xu Li , Zhao Chen , Aurobinda Laha , Ziru Chen , Yu Cheng , Lin X. Cai

Multiple antenna techniques, that allow energy beamforming, have been looked upon as a possible candidate for increasing the efficiency of the transfer process between the energy transmitter (ET) and the energy receiver (ER) in wireless…

Signal Processing · Electrical Eng. & Systems 2017-12-12 Samith Abeywickrama , Tharaka Samarasinghe , Chin Keong Ho