Location based services in wireless ad hoc networks

摘要: In this dissertation, we investigate location based services in wireless ad hoc networks from four different aspects i) privacy sensor (privacy), ii) end-to-end secure communication randomly deployed (security), iii) quality versus latency trade-off content retrieval under node mobility (performance) and iv) clustering Sybil attack detection vehicular (trust). The first contribution of dissertation is addressing networks. We propose a non-cooperative localization algorithm showing how an external entity can stealthily invade into the sensors network. then design preserving tracking for defending against such adversarial attacks. Next Here, due to lack control on sensors’ locations post deployment, pre-fixing pairwise keys between not feasible especially larger scale random deployments. Towards premise, differentiated key pre-distribution endto-end communication, show it improves existing routing algorithms. Our next mobility. two-tiered architecture efficient environment. Finally A attacker create use multiple counterfeit identities risking trust network, easily escape avoiding detection. nodes leveraging vehicle platoon dispersion attacks