Results 261 to 270 of about 1,433 (285)

A new scheme to improve the secrecy throughput under the constraints of secrecy outage probability and average transmit power

2014 IEEE International Conference on Communications Workshops (ICC), 2014
The issue of physical layer security for the wireless communication with slow fading is addressed in this paper, and the secrecy outage performance is concerned. The system is modeled as a wiretap channel, and each of the transmitter and receivers is equipped with a single antenna.
Pengcheng Mu, Peizhi Yang, Bo Wang 0017, Huiming Wang 0001, Qinye Yin 0001   +4 more
openaire   +1 more source

Secrecy Throughput Maximization for Full-Duplex Wireless Powered Communication Networks

ICC 2019 - 2019 IEEE International Conference on Communications (ICC), 2019
In this paper, we investigate the secrecy throughput for a full-duplex wireless powered communication network. A multi-antenna base station (BS) transmits energy towards nodes all the time and each node harvests energy prior to its transmission time slot.
Roohollah Rezaei, Sumei Sun, Xin Kang 0001, Yong Liang Guan 0001, Mohammad Reza Pakravan   +4 more
openaire   +1 more source

An Achievable Secrecy Throughput of Hybrid-ARQ Protocols for Block Fading Channels

2007 IEEE International Symposium on Information Theory, 2007
In applications of wireless packet-oriented data networks, a special coding scheme, the hybrid automatic retransmission request (HARQ) exhibits high throughput efficiency by adapting its error correcting code redundancy to channel conditions. Motivated by the increasing importance of secure communication over wireless networks, we investigate secure ...
Xiaojun Tang 0001, Ruoheng Liu, Predrag Spasojevic   +2 more
openaire   +1 more source

Throughput maximization in multiantenna OFDMA downlink under secrecy rate constraints

2014 IEEE Wireless Communications and Networking Conference (WCNC), 2014
This paper deals with the problem of sum rate maximization for a multiuser orthogonal frequency-division multiple access channel with secrecy rate constraints. We consider the case of a multiple-antenna base station (BS) and several single-antenna downlink receivers; a single secure user, a single eavesdropper and several normal users (without secrecy ...
Karachontzitis, S., Timotheou, S., Krikidis, Ioannis A., Karachontzitis, S., Timotheou, S., Krikidis, Ioannis A.   +5 more
openaire   +2 more sources

Secrecy Throughput Maximization for Massive MIMO Wireless Powered Communication Networks

2019 IEEE Global Communications Conference (GLOBECOM), 2019
In this paper, we study the secrecy throughput in a massive Multiple-Input-Multiple-Output (MIMO) full-duplex wireless powered communication network (WPCN). The network consists of a massive MIMO base station (BS) and two groups of single- antenna sensor nodes which harvest energy from the BS.
Roohollah Rezaei, Sumei Sun, Xin Kang 0001, Yong Liang Guan 0001, Mohammad Reza Pakravan   +4 more
openaire   +1 more source

Bargaining over the Fair Trade-Off Between Secrecy and Throughput in OFDM Communications

IEEE Transactions on Information Forensics and Security, 2016
The problem of ensuring the secrecy of a communication while simultaneously maintaining sufficient throughput is a fundamental challenge facing secret communication. One of the challenges for such problems is that the optimal solution for one of objective might be not optimal for the other (e.g., an increase in secrecy might yield a decrease in ...
Andrey Garnaev, Wade Trappe
openaire   +1 more source

A Novel Framework for Achievable Secrecy Throughput of Distributed Cognitive Radio Wireless Networks

Journal of Communications, 2015
The achievable secrecy throughput of the distributed cognitive radio wireless networks (DCRWNs) is investigated in this paper. The related works on the secrecy performance mainly focus on the average value depending on nodes spatial distribution. However, these results neglect the effect of nodes location on the performance discrepancies. To break this
Hongyu Ma, Kai Niu 0001
openaire   +1 more source

Secrecy-throughput-optimal artificial noise design against randomly located eavesdroppers

2016 International Conference on Computing, Networking and Communications (ICNC), 2016
This paper investigates the parameter design and optimization on the artificial-noise-aided multi-antenna transmission in the presence of randomly located eavesdroppers. Our objective is to maximize the secrecy throughput subject to a secrecy outage constraint.
Tongxing Zheng, Hui-Ming Wang 0001, Rui Huang, Pengcheng Mu   +3 more
openaire   +1 more source

Effective secrecy throughput analysis of relay-assisted free-space optical communications

Physical Communication, 2019
Abstract We evaluate the effective secrecy throughput (EST) of multiple-input-multiple-output relay-assisted free-space optical communication, where legitimate nodes (Alice, Relays, and Bob) communicate in the presence of multiple Eavesdroppers (Eves) under two different weather conditions, namely clear weather with weak turbulence and light fog with
Marcos Eduardo Pivaro Monteiro, João Luiz Rebelatto, Richard Demo Souza, Glauber Brante   +3 more
openaire   +1 more source

Secrecy Throughput Optimization in the Buffer-aided MIMO Full-Duplex Relaying System

2019 IEEE 30th Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC), 2019
In this paper, the physical layer security is studied in a buffer-aided MIMO relaying system, which consists of a source, a destination, a multi-antenna relay and multiple eavesdroppers. The relay operates in either half-duplex mode or full-duplex mode, based on the channel state information (CSI) of legitimate links.
Yue Zhao, Huifang Chen, Lei Xie 0003, Kuang Wang   +3 more
openaire   +1 more source