Power optimization in sensor networks for passive radar applications

Author(s):  
Gholamreza Alirezaei ◽  
Rudolf Mathar ◽  
Pouya Ghofrani
2014 ◽  
Vol 13 (6) ◽  
pp. 3222-3231 ◽  
Author(s):  
Gholamreza Alirezaei ◽  
Michael Reyer ◽  
Rudolf Mathar

2020 ◽  
Vol 17 (1) ◽  
pp. 67-71
Author(s):  
Gao Fang ◽  
Jianxin Yi ◽  
Yangpeng Dan ◽  
Xianrong Wan ◽  
Hengyu Ke

2017 ◽  
Vol 66 (1) ◽  
pp. 5-16 ◽  
Author(s):  
Tamás Pető ◽  
Rudolf Seller

Abstract In recent times the growing utilization of the electromagnetic environment brings the passive radar researches more and more to the fore. For the utilization of the wide range of illuminators of opportunity the application of wideband radio receivers is required. At the same time the multichannel receiver structure has also critical importance in target direction finding and interference suppression. This paper presents the development of a multichannel software defined receiver specifically for passive radar applications. One of the relevant feature of the developed receiver platform is its up-to-date SoC (System on hip) based structure, which greatly enhance the integration and signal processing capacity of the system, all while keeping the costs low. The software defined operation of the discussed receiver system is demonstrated with using DVB-T (Digital Video Broadcast – Terrestrial) signal as illuminator of opportunity. During this demonstration the multichannel capabilities of the realized system are also tested with real data using direction finding and beamforming algorithms.


Author(s):  
K Prashanth ◽  
S S Nagamuthu Krishnan

Wireless sensor networks (WSN) are highly vulnerable to attacks and constraints on resources like power, processing, and radio signal. In high constraint and vulnerable environments adapting to detection and defence mechanisms is a challenge. In this paper analysis of Distributed Denial of Service detection mechanisms of Sybil, Sinkhole, and Wormhole attack for power optimization is carried out based on the power consumption parameter. Power consumption attributes affects the efficiency of nodes during the time of attacks. Energy utilization and conservation also depend upon certain parameters comprising usage of network, changes in topology, climatic changes, no of sensors connected, memory utilization on sensors, and security issues. The analysis takes various attacks detection mechanisms into consideration and a comparative study is projected upon power optimization parameters. This study could contribute to the aspect of extending the activity of the sensor in various applications such as whether monitoring and recording of wildlife movement.


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