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Range-Based and Range-Free Localization Schemes for Sensor Networks - page 35 / 37

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Weakness of SerLoc

Requires extra hardware, i.e., ultrasonic channel

Innocent victims may respond late due to backlog

Not location verification but range verification

Verifier

M’s Real

Location

M’s

claimed

Location

sink

Oops... Verifier cannot tell

the difference! Big trouble...

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