Results 31 to 40 of about 4,155 (271)

Design and characteristic analysis of hybrid OFD–LFM–PC waveforms in the MIMO radar

The Journal of Engineering, 2019
In this study, a new set of hybrid orthogonal frequency division–linear frequency modulation–phase coded (OFD–LFM–PC) waveforms are proposed to improve the detection performance of multiple-input-multiple-output (MIMO) radars.
Sheng Hong, Yantao Dong, Yu Ai, Yuhao Wang, Zhixin Zhao   +4 more
doaj   +1 more source

Opportunistic Capacity-Based Resource Allocation for Chunk-Based Multi-Carrier Cognitive Radio Sensor Networks. [PDF]

Sensors (Basel), 2017
The spectrum allocation for cognitive radio sensor networks (CRSNs) has received considerable research attention under the assumption that the spectrum environment is static.
Huang J, Zeng X, Jian X, Tan X, Zhang Q.
europepmc   +2 more sources

Cluster-based scheduling for cognitive radio sensor networks [PDF]

Journal of Ambient Intelligence and Humanized Computing, 2018
In this paper, we define a cluster based scheduling algorithm for Cognitive Radio Sensor Networks (CRSNs). To avoid inter-clusters collision, we assign fixed channels only to nodes having one-hop neighbors out of their clusters. We denote these nodes as specific nodes.
Idoudi, Hanen, Mabrouk, Ons, Minet, Pascale, Saidane, Leila   +3 more
openaire   +2 more sources

Joint Optimization of Receiver Placement and Illuminator Selection for a Multiband Passive Radar Network

Sensors, 2017
The performance of a passive radar network can be greatly improved by an optimal radar network structure. Generally, radar network structure optimization consists of two aspects, namely the placement of receivers in suitable places and selection of ...
Rui Xie, Xianrong Wan, Sheng Hong, Jianxin Yi   +3 more
doaj   +1 more source

A Secure and Anonymous Cooperative Sensing Protocol for Cognitive Radio Networks [PDF]

, 2011
Spectrum is an essential resource for the provision of mobile services. In order to control and delimit its use, governmental agencies set up regulatory policies.
Helena Rifà-Pous, Rifà Pous, Helena, Garrigues Olivella, Carles, Carles Garrigues   +3 more
core   +1 more source

Cognitive Wireless Networks Based Spectrum Sensing Strategies: A Comparative Analysis

Applied Computational Intelligence and Soft Computing, 2022
Because of numerous dormant application fields, wireless sensor networks (WSNs) have emerged as an important and novel area in radio and mobile computing research.
Anandakumar Haldorai, Jeevanandham Sivaraj, Munivenkatappa Nagabushanam, Michaelraj Kingston Roberts   +3 more
doaj   +1 more source

Cognitive Multihop Wireless Sensor Networks over Nakagami-m Fading Channels [PDF]

, 2014
This work is supported by the National Science Foundation of China (NSFC) under Grant 61372114, by the National 973 Program of China under Grant 2012CB316005, by the Joint Funds of NSFC-Guangdong under Grant U1035001, and by Beijing Higher Education ...
Wang, W, Zhi Yan, Xing, J, Gao, Y, Xing Zhang, Yan, Z, Wenbo Wang, Zhang, X, Yue Gao, Jia Xing   +9 more
core   +1 more source

Airborne Base Stations for Emergency and Temporary Events [PDF]

, 2013
This paper introduces a rapidly deployable wireless network based on Low Altitude Platforms and portable land units to support disaster-relief activities, and to extend capacity during temporary mass events.
Munari, Andrea, Valcarce, Alvaro, Sithamparanathan Kandeepan, Reynaud, Laurent, Mihael Mohorcic, Isabelle Bucaille, Alvaro Valcarce, Mohoric, Miha, Hermenier, Romain, Tinku Rasheed, Sithamparanathan, Kandeepan, Laurent Reynaud, Bucaille, Isabelle, Karina Gomez, Romain Hermenier, Gomez, Karina, Rasheed, Tinku, Andrea Munari, Miha Smolnikar, Smoliknar, Miha   +19 more
core   +1 more source

Sensor Clustering and Sensing Technology for Optimal Throughput of Sensor-Aided Cognitive Radio Networks Supporting Multiple Licensed Channels

International Journal of Distributed Sensor Networks, 2015
In cognitive radio networks, secondary users may not sense licensed channels efficiently due to problems of fading channel, shadowing, unfamiliar environment, and so forth.
Thanh-Tung Nguyen, Insoo Koo
doaj   +1 more source

A NEW SPECTRUM AND ENERGY AWARE ROUTING PROTOCOL IN COGNITIVE RADIO SENSOR NETWORK

International Islamic University Malaysia Engineering Journal, 2018
: Cognitive radio sensor network (CRSN) is a new generation of communication systems that wants to solve the overcrowded spectrum utilization of the unlicensed bands.
Sayyed Majid Mazinani, Sara Moshtaghi
doaj   +1 more source