A Computational Offloading Incentive Forward Contract Taking into Account Risk Appetite
In edge computing networks,to stimulate the Edge Computing Nodes(ECNs)to assist in computation offloading to relieve the pressure of computing Service Provider(SP),a forward transaction oriented incentive mechanism is studied.Considering that there is information asymmetry between SP and ECNs and the uncertainty of ECNs idle resources can lead to cooperation risks,a risk-aware forward incentive mechanism based on contract theory for computation offloading is proposed.Firstly,a risk preference model for nodes is established;and then the Individual Rationality(IR)constraints and Incentive Compatibility(IC)constraints are defined,and the incentive problem is modeled as a forward contract design problem to maximize the benefits of SP;finally,the optimal forward contract is derived after constraint simplification.The simulation results verify the feasibility and rationality of the proposed forward contract,and prove that the contract can effectively incentivize ECNs to participate in computation offloading and increase the profits of SP.