Security and Energy-aware Collaborative Task Offloading in D2D communication

Device-to-device (D2D) communication technique is used to establish direct links among mobile devices (MDs) reduce delay and increase network capacity over the underlying wireless networks. Existing D2D schemes for task offloading focus on system throughput, energy consumption, without considering data security. This paper proposes a Security Energy-aware Collaborative Task Offloading (Sec2D). Specifically, we first build novel security model, in terms of number CPU cores, frequency, size, measuring workload heterogeneous MDs. Then, formulate collaborative problem that minimizes time-average consumption MDs while ensuring In order meet this goal, Lyapunov optimization framework applied implement online decision-making. Two solutions, greedy approach optimal approach, with different time complexities, are proposed deal generated mixed-integer linear programming (MILP) problem. The theoretical proofs demonstrate Sec2D follows [O(1?V),O(V)] energy-delay tradeoff. Simulation results show can guarantee both stability environment.