Protecting Source Location Privacy in IoT-Enabled Wireless Sensor Networks: The Case of Multiple Assets

A major limitation to the use of wireless sensor networks (WSNs) in asset monitoring applications is security and privacy, particularly privacy source location information. In this article, we develop two phantom routing-based solutions provide for case multisource/asset scenario—the that has received very little attention literature. The idea routing relay packets a distant node random fashion obfuscate traffic flows confuse attacker. first technique backward walk (PRBRW) uses combination (RW) greedy forwarding approach route base station (BS). Although better performance improvements terms capture ratio safety period it hampers lifetime network poor entropy metric. To problem, an improved scheme L-path RW (PRLPRW) proposed. second three phases: 1) pure RW; 2) L-walk; 3) walk. This performs well ratio, period, metrics. improvement 10-folds 477-folds when compared with PRBRW. evaluated using developed analytical models baseline protection-less shortest path (SPR). It observed PRBRW PRLPRW, respectively, have 60- 73-fold SPR, whereas existing forward techniques, only 54- 34-fold improvements.