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For a self-sustaining wireless communication system in Internet-of-Things (IoT) networks, energy harvesting (EH) can be implemented at each user node as a constant renewable power supply source. Hence, an investigation into the use of…

Information Theory · Computer Science 2020-04-16 Derek Kwaku Pobi Asiedu , Sumaila Mahama , Changick Song , Dongwan Kim , Kyoung-Jae Lee

The increasing complexity of recent Wi-Fi amendments is making optimal Rate Adaptation (RA) a challenge. The use of classic algorithms or heuristic models to address RA is becoming unfeasible due to the large combination of configuration…

Networking and Internet Architecture · Computer Science 2022-02-14 Ruben Queiros , Eduardo Nuno Almeida , Helder Fontes , Jose Ruela , Rui Campos

Rotatable antenna (RA) is a promising technology that exploits new spatial degree-of-freedom (DoF) to improve wireless communication and sensing performance. In this letter, we investigate an RA-enabled secure communication system where…

Signal Processing · Electrical Eng. & Systems 2025-05-01 Liang Dai , Beixiong Zheng , Qingjie Wu , Changsheng You , Robert Schober , Rui Zhang

The Future wireless communication systems face the challenging task of simultaneously providing high quality of service (QoS) and broadband data transmission, while also minimizing power consumption, latency, and system complexity. Although…

Information Theory · Computer Science 2024-10-03 Amina Darghouthi , Abdelhakim Khlifi , Hmaied Shaiek , Fatma Ben Salah , Belgacem Chibani

In this paper we study the maximum throughput achievable with optimal scheduling in multi-hop networks with highly directive antenna arrays capable of Space Division Multiplexing (SDM) at the transmitter and Space Division Multiple Access…

Information Theory · Computer Science 2019-01-28 Felipe Gómez-Cuba , Michele Zorzi

In this paper, a wireless powered communication network (WPCN) consisting of a hybrid access point (H-AP) and multiple user equipment (UEs), all of which operate in full-duplex (FD), is described. We first propose a transceiver structure…

Information Theory · Computer Science 2017-06-28 Hyungsik Ju , Yuro Lee , Tae-Joong Kim

We consider a single hop wireless X network with $K$ transmitters and $J$ receivers, all with single antenna. Each transmitter conveys for each receiver an independent message. The channel is assumed to have constant coefficients. We…

Information Theory · Computer Science 2011-09-15 Zhengdao Wang

Wireless sensing is a promising technology for future wireless communication networks to realize various application services. Wireless local area network (WLAN)-based localization approaches using channel state information (CSI) have been…

Signal Processing · Electrical Eng. & Systems 2024-10-28 Osamu Muta , Kazuki Noguchi , Junsuke Izumi , Shunsuke Shimizu , Tomoki Murakami , Shinya Otsuki

This paper introduces an efficient method for communication resource use in dense wireless areas where all nodes must communicate with a common destination node. The proposed method groups nodes based on their \newt{distance from the…

Systems and Control · Electrical Eng. & Systems 2022-02-14 Haleh Tabrizi , Borja Peleato , Golnaz Farhadi , John M. Cioffi , Ghadah Aldabbagh

Beamforming with desired directivity patterns using compact microphone arrays is essential in many audio applications. Directivity patterns achievable using traditional beamformers depend on the number of microphones and the array aperture.…

Audio and Speech Processing · Electrical Eng. & Systems 2026-03-24 Weilong Huang , Srikanth Raj Chetupalli , Mhd Modar Halimeh , Oliver Thiergart , Emanuël A. P. Habets

Recently, Wi-Fi signals have emerged as a powerful tool for contactless sensing. During the sensing process, obtaining target direction information can provide valuable contextual insights for various applications. Existing direction…

Signal Processing · Electrical Eng. & Systems 2025-11-27 Zhaoxin Chang , Shuguang Xiao , Fusang Zhang , Xujun Ma , Badii Jouaber , Qingfeng Zhang , Daqing Zhang

Some multi-path routing algorithm in MANET, simultaneously send information to the destination through several directions to reduce end-to-end delay. In all these algorithms, the sent traffic through a path affects the adjacent path and…

Networking and Internet Architecture · Computer Science 2013-03-08 Hassanali Nasehi , Nastooh Taheri Javan , Amir Bagheri Aghababa , Yasna Ghanbari Birgani

Directional antennas and beamforming can significantly improve point-to-point wireless links when perfectly aligned. In this letter we investigate the extreme opposite where antenna orientations and positions are chosen at random in the…

Networking and Internet Architecture · Computer Science 2015-04-09 Orestis Georgiou , Camly Nguyen

In this two-part paper, we consider the multiantenna multihop relay channels in which the source signal arrives at the destination through N independent relaying hops in series. The main concern of this work is to design relaying strategies…

Information Theory · Computer Science 2007-07-13 Sheng Yang , Jean-Claude Belfiore

The newly emerging wireless powered communication networks (WPCNs) have recently drawn significant attention, where radio signals are used to power wireless terminals for information transmission. In this paper, we study a WPCN where one…

Information Theory · Computer Science 2014-04-16 Liang Liu , Rui Zhang , Kee-Chaing Chua

We describe a TDD MIMO wireless system designed to operate at high bandwidth and low SNR. Signals are transmitted as a direct sequence. In the uplink (Multiple Access Channel), signal detection is done by a space-time whitening filter…

Next-generation wireless systems will offer integrated sensing and communications (ISAC) functionalities not only in order to enable new applications, but also as a means to mitigate challenges such as doubly-dispersive channels, which…

In this paper, multi-stream transmission in interference networks aided by multiple amplify-and-forward (AF) relays in the presence of direct links is considered. The objective is to minimize the sum power of transmitters and relays by…

Signal Processing · Electrical Eng. & Systems 2018-12-31 Cenk M. Yetis , Ronald Y. Chang

Over the years, advancements such as increased bandwidth, new modulation and coding schemes, frame aggregation, and the use of multiple antennas have been employed to enhance Wi-Fi performance. Nonetheless, as network density and the demand…

Networking and Internet Architecture · Computer Science 2025-02-04 Douglas Dziedzorm Agbeve , Andrey Belogaev , Wim Sandra , Carl Lylon , Jeroen Famaey

Unmanned aerial vehicles (UAVs) can provide wireless access to terrestrial users, regardless of geographical constraints, and will be an important part of future communication systems. In this paper, a multi-user downlink dual-UAVs enabled…

Information Theory · Computer Science 2023-10-24 Hongjiang Lei , Jiacheng Jiang , Imran Shafique Ansari , Gaofeng Pan , Mohamed-Slim Alouini