A New Spread Spectrum Based Approach for Ensuring Energy Efficiency and Security in Wireless Sensor Networks

Wirelesssensornetworks(WSNs)playacentralroleintheInternetofThings(IoT).Itconsistsof small-sizesensornodesconnectedtotheinternetthroughgatewaysprovidingcontentrichinformation. So,thetraffictransmissionbetweensensornodesoverradiolinksrequireshighlybandwidthandneeds toensurethereliabilityofthedata.Therefore,providingsafecommunicationsofsensordataover wirelesscommunicationchannelplaysanessentialrole.Thus,theimportantissueonwirelesssensor networksistofindanoptimalschemathatensuringenergyefficiencytogetherwiththesecurity.In contrast,implementingtraditionalcryptographicalgorithmsisnotverywellsuitedforWSNsnodes. Inthisarticle,anovelcombinationofspreadspectrumintowatermarkingschemeispresented.This watermarkingschemabasedondirect-frequency-timespreadspectrumsecuresdatacommunication againstjammingandfalsificationtoensuredataintegrityandincreasesresistancetointerferenceat thesametimeensurestheenergyefficiency. KEyWoRdS DSSS, Energy-Efficient, Falsification, FHSS, Integrity, Jamming, MATLAB, Spread Spectrum, THSS, Watermarking, Wireless Sensor Networks

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