We provide a novel solution for Resource Discovery (RD) in mobile deviceclouds consisting of selfish nodes. Mobile device clouds (MDCs) refer tocooperative arrangement of communication-capable devices formed withresource-sharing goal in mind. Our work is motivated by the observation thatwith ever-growing applications of MDCs, it is essential to quickly locateresources offered in such clouds, where the resources could be content,computing resources, or communication resources. The current approaches for RDcan be categorized into two models: decentralized model, where RD is handled byeach node individually; and centralized model, where RD is assisted bycentralized entities like cellular network. However, we propose LORD, aLeader-based framewOrk for RD in MDCs which is not only self-organized and notprone to having a single point of failure like the centralized model, but alsois able to balance the energy consumption among MDC participants better thanthe decentralized model. Moreover, we provide a credit-based incentive tomotivate participation of selfish nodes in the leader selection process, andpresent the first energy-aware leader selection mechanism for credit-basedmodels. The simulation results demonstrate that LORD balances energyconsumption among nodes and prolongs overall network lifetime compared todecentralized model.
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