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Reliable transmission of a discrete memoryless source over a multiple-relay relay-broadcast network is considered. Motivated by sensor network applications, it is assumed that the relays and the destinations all have access to side…

信息论 · 计算机科学 2012-02-28 Deniz Gunduz , Elza Erkip , Andrea Goldsmith , H. Vincent Poor

We study in this paper a two-hop relaying network consisting of one source, one destination, and three amplify-and-forward (AF) relays operating in a half-duplex mode. In order to compensate for the inherent loss of capacity pre-log factor…

信息论 · 计算机科学 2012-07-17 Ki-Hong Park , Mohamed-Slim Alouini

In spectrum-sharing cognitive radio systems, the transmit power of secondary users has to be very low due to the restrictions on the tolerable interference power dictated by primary users. In order to extend the coverage area of secondary…

信息论 · 计算机科学 2013-11-22 Minghua Xia , Sonia Aïssa

Energy efficiency has become an encouragement, and more than this, a requisite for the design of next-generation wireless communications standards. In current work, a dual-hop cognitive (secondary) relaying system is considered,…

In this paper, we study the performance, in terms of the asymptotic error probability, of a user which communicates with a destination with the aid of a full-duplex in-band relay. We consider that the network is interference-limited, and…

信息论 · 计算机科学 2014-05-16 Andres Altieri , Leonardo Rey Vega , Pablo Piantanida , Cecilia G. Galarza

Device-to-device (D2D) communication in cellular networks allows direct transmission between two cellular devices with local communication needs. Due to the increasing number of autonomous heterogeneous devices in future mobile networks, an…

网络与互联网体系结构 · 计算机科学 2016-11-15 Monowar Hasan , Ekram Hossain , Dong In Kim

This paper studies simultaneous wireless information and power transfer (SWIPT) systems in two-way relaying (TWR) channels. Here, two source nodes receive information and energy simultaneously via power splitting (PS) from the signals sent…

信息论 · 计算机科学 2016-04-15 Wei Wang , Rui Wang , Hani Mehrpouyan

This paper proposes a virtual harvest-transmit model and a harvest-transmit-store model for amplify-and-forward full-duplex relay (FDR) networks with power splitting-based simultaneous wireless information and power transfer. The relay node…

信息论 · 计算机科学 2016-07-06 Hongwu Liu , Kyung Sup Kwak

In this report, we consider how to dynamically select transmission bands and multi-hop routes for device-to-device (D2D) communications in co-existence with a cellular network overlay. Firstly, we consider different wireless routing…

网络与互联网体系结构 · 计算机科学 2013-10-23 Yuan Hu

In this paper, we investigate the performance of a dual-hop block fading cognitive radio network with underlay spectrum sharing over independent but not necessarily identically distributed (i.n.i.d.) Nakagami-$m$ fading channels. The…

信息论 · 计算机科学 2017-05-08 Saeed Vahidian , Maryam Najafi , Marzieh Najafi , Fawaz S. Al-Qahtani

Consider the communication of a single-user aided by a nearby relay involved in a large wireless network where the nodes form an homogeneous Poisson point process. Since this network is interference-limited the asymptotic error probability…

信息论 · 计算机科学 2011-03-14 Andres Altieri , Leonardo Rey Vega , Cecilia G. Galarza , Pablo Piantanida

In this paper, we propose a dual-hop RF (Radio-Frequency)/FSO (Free-Space Optical) system with multiple relays employing the Decode-and-Forward (DF) and Amplify-and-Forward (AF) with a Fixed Gain (FG) relaying scheme. The RF channels are…

信号处理 · 电气工程与系统科学 2019-02-11 Elyes Balti , Mohsen Guizani , Bechir Hamdaoui , Bassem Khalfi

In this work, we study the performance of a single relay Multiple Input Multiple Output (MIMO) cooperative communication system based on Decode and Forward (DF) relaying protocol for two strategies using transmit antenna selection at the…

信号处理 · 电气工程与系统科学 2017-11-13 Mokhtar Bouteggui , Fatiha Merazka

In this paper, we propose a device to device (D2D) communication scenario underlaying a cellular network where both D2D and cellular users (CUs) are discrete power-rate systems with limited feedback from the receivers. It is assumed that…

信息论 · 计算机科学 2017-08-29 Faezeh Alavi , Nader Mokari , Mohammad R. Javan , Kanapathippillai Cumanan

We analyze the secrecy performance of a two-hop mixed radio frequency (RF)/underwater wireless optical communication (UWOC) system using a decode-and-forward (DF) relay. All RF and UWOC links are modeled by the $\alpha-\mu$ and…

信息论 · 计算机科学 2020-09-02 Yi Lou , Ruofan Sun , Julian Cheng , Donghu Nie , Gang Qiao

This letter presents a device-to-device (D2D) enabling cellular full-duplex (FD) cooperative protocol using non-orthogonal multiple access (NOMA), where an FD relay assists in relaying NOMA far user's signal and transmits a D2D receiver's…

信号处理 · 电气工程与系统科学 2018-12-04 Mohammed Belal Uddin , Md. Fazlul Kader , Soo Young Shin

In this paper, a symbol-level selective transmission for full-duplex (FD) relaying networks is proposed to mitigate error propagation effects and improve system spectral efficiency. The idea is to allow the FD relay node to predict the…

信息论 · 计算机科学 2018-06-05 Jiancao Hou , Sandeep Narayanan , Na Yi , Yi Ma , Mohammad Shikh-Bahaei

Device-to-device (D2D) communications have recently emerged as a novel transmission paradigm in wireless cellular networks. D2D transmissions take place concurrently with the usual cellular connections, and thus, controlling the…

网络与互联网体系结构 · 计算机科学 2021-01-26 Morteza Banagar , Behrouz Maham , Petar Popovski , Francesco Pantisano

In this paper, we study two-way relay networks (TWRNs) in which two source nodes exchange their information via a relay node indirectly in Rayleigh fading channels. Both Amplify-and-Forward (AF) and Decode-and-Forward (DF) techniques have…

信息论 · 计算机科学 2011-03-01 Qing Chen , Mustafa Cenk Gursoy

While cognitive radio enables spectrum-efficient wireless communication, radio frequency (RF) energy harvesting from ambient interference is an enabler for energy-efficient wireless communication. In this paper, we model and analyze…

网络与互联网体系结构 · 计算机科学 2015-04-17 Ahmed Hamdi Sakr , Ekram Hossain