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Energy harvesting technique is a potential way for relay node energy supply in cooperative networks in terms of deployment flexibility and maintain charge reduction. Unlike traditional power source, relay node in this case may run out of…

Information Theory · Computer Science 2014-09-02 Tao Li , Pingyi Fan , Khaled Ben Letaief

User cooperation although improves performance of wireless systems, it requires incentives for the potential cooperating nodes to spend their energy acting as relays. Moreover, these potential relays are better informed than the source…

Networking and Internet Architecture · Computer Science 2013-04-30 Ziaul Hasan , Vijay K. Bhargava

We consider a general class of low complexity distributed scheduling algorithms in wireless networks, maximal scheduling with priorities, where a maximal set of transmitting links in each time slot are selected according to certain…

Information Theory · Computer Science 2011-12-05 Qiao Li , Rohit Negi

In this paper, we present a new power allocation scheme for a decode-and-forward (DF) relaying-enhanced cooperative wireless system. While both source and relay nodes may have limited traditional brown power supply or fixed green energy…

Information Theory · Computer Science 2014-07-09 Xueqing Huang , Nirwan Ansari

We study sensor networks with energy harvesting nodes. The generated energy at a node can be stored in a buffer. A sensor node periodically senses a random field and generates a packet. These packets are stored in a queue and transmitted…

Networking and Internet Architecture · Computer Science 2008-11-04 Vinod Sharma , Utpal Mukherji , Vinay Joseph

Internet-of-Things (IoT) is featured with low-power communications among a massive number of ubiquitously-deployed and energy-constrained electronics, e.g., sensors and actuators. To cope with the demand, wireless-powered cooperative…

Information Theory · Computer Science 2021-02-03 Xiao Lu , Dusit Niyato , Hai Jiang , Ekram Hossain , Ping Wang

We consider a wireless network in which a source node needs to transmit a large file to a destination node. The direct wireless link between the source and the destination is assumed to be blocked. Multiple candidate relays are available to…

Networking and Internet Architecture · Computer Science 2025-08-29 Mandar R. Nalavade , Ravindra S. Tomar , Gaurav S. Kasbekar

This work proposes an analytical framework to study how relay selection strategies perform in half- and full-duplex deployments by combining renewal theory and stochastic geometry. Specifically, we assume that the network nodes -- operating…

Information Theory · Computer Science 2017-01-31 Carlos H. M. de Lima , Hirley Alves , Pedro. H. J. Nardelli , Matti Latva-aho

Estimation problems in wireless sensor networks typically involve gathering and processing data from distributed sensors to infer the state of an environment at the fusion center. However, not all measurements contribute significantly to…

Signal Processing · Electrical Eng. & Systems 2025-04-17 Chen Quan , Geethu Joseph , Nitin Jonathan Myers

Relay nodes-enhanced architectures are deemed a viable solution to enhance coverage and capacity of nowadays cellular networks. Besides a number of desirable features, these architectures reduce the average distance between users and…

Networking and Internet Architecture · Computer Science 2015-05-06 Mattia Minelli , Maode Ma , Marceau Coupechoux , Jean-Marc Kelif , Marc Sigelle , Philippe Godlewski

A non-regenerative dual-hop wireless system based on a distributed space-time coding strategy is considered. It is assumed that each relay retransmits an appropriately scaled space-time coded version of its received signal. The main goal of…

Information Theory · Computer Science 2016-11-18 Jamshid Abouei , Hossein Bagheri , Amir K. Khandani

Backscattering assisted wireless-powered communication combines ultralow-power backscatter transmitters with energy harvesting devices. This paper investigates the transmission mode selection problem of a hybrid relay that forwards data by…

Networking and Internet Architecture · Computer Science 2020-05-15 Guangxia Li , Xiao Lu , Dusit Niyato

Multi-User scheduling is a challenging problem under the relaying scenarios. Traditional schemes, which are based on the instantaneous signal-to-interference-plus-noises ratios (SINRs), cannot solve the inherent disparities of the qualities…

Information Theory · Computer Science 2018-02-23 Pihe Hu , Cheng Li , Dingjie Xu , Bin Xia

We consider the optimal packet scheduling problem in a single-user energy harvesting wireless communication system. In this system, both the data packets and the harvested energy are modeled to arrive at the source node randomly. Our goal…

Information Theory · Computer Science 2010-10-08 Jing Yang , Sennur Ulukus

Physical-layer security for wireless networks has become an effective approach and recently drawn significant attention in the literature. In particular, the deployment and allocation of resources such as relays to assist the transmission…

Information Theory · Computer Science 2017-12-29 X. Lu , R. C. de Lamare

In this paper, we consider a wireless powered communication system, where an energy harvesting (EH) node harvests energy from a radio frequency (RF) signal broadcasted by an access point (AP) in the downlink (DL). The node stores the…

Information Theory · Computer Science 2017-10-12 Rania Morsi , Diomidis S. Michalopoulos , Robert Schober

In this work we propose an adaptive buffer-aided space-time coding scheme for cooperative wireless networks. A maximum likelihood receiver and adjustable code vectors are considered subject to a power constraint with an amplify-and-forward…

Information Theory · Computer Science 2015-07-07 T. Peng , R. C. de Lamare

A Relay Station (RS) uses a buffer to store and process the received data packets before forwarding them. Recently, the buffer has been exploited in one-way relaying to opportunistically schedule the two different links according to their…

Information Theory · Computer Science 2012-07-27 Huaping Liu , Petar Popovski , Elisabeth de Carvalho , Yuping Zhao

This letter considers simultaneous wireless information and power transfer (SWIPT) for a multiple-input multiple-output (MIMO) relay system. The relay is powered by harvesting energy from the source via time switching (TS) and utilizes the…

Information Theory · Computer Science 2017-04-11 Jialing Liao , Muhammad R. A. Khandaker , Kai-Kit Wong

For enhancing transmission performance, privacy level and energy manipulating efficiency of wireless networks, this paper initiates a novel simultaneous wireless information and power transfer (SWIPT) full-duplex (FD) relaying protocol,…

Signal Processing · Electrical Eng. & Systems 2020-02-10 Yuanjian Li , Rui Zhao , Zhiqiao Nie , A. Hamid Aghvami
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