In the fifth generation (5G) networks, isolated logical slices are formed by the same infrastructure, and spectrum resource. In the coverage regions of the sharing access points (APs), device to device (D2D) communication can occur among different slices, i.e., one mobile terminal (MT) acts as a D2D relay for another MT serving by a different slice. Since the slices, and the MTs are selfish who will not help others voluntarily, this paper proposes a two-layered incentive scheme to stimulate cooperation. To achieve this, two resource allocating problems of the proposed incentive scheme are formulated which introducing the slices,’ and the MTs’ cooperative activities, thus more resources will be allocated to the cooperative slices, and MTs as reward. Since the slices,’ and the MTs’ instantaneous resource allocations can not be obtained by the two optimal problems, the incentive scheduling algorithms of the slices, and the MTs are designed. Finally, we define the isolation indexes to evaluate slice isolation when carrying out cooperation. By simulating, it is proved that the proposed incentive scheme can stimulate cooperation efficiently, since the throughputs of the cooperative slices, and MTs are both improved. And the proposed incentive scheme is helpful for the slices, and the MTs to meet the statistical service quality requirements, and brings the bad effect to the instantaneous service quality requirements.

中文翻译：

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切片5G D2D网络合作的两层激励计划

在第五代（5G）网络中，隔离的逻辑切片由相同的基础设施和频谱资源构成。在共享接入点(AP)的覆盖区域中，设备到设备(D2D)通信可以发生在不同切片之间，即，一个移动终端(MT)充当由不同切片服务的另一个MT的D2D中继。由于切片和 MT 是自私的，不会自愿帮助他人，因此本文提出了一个两层激励方案来激发合作。为了实现这一点，提出了所提出的激励方案的两个资源分配问题，即引入切片和 MT 的合作活动，因此将更多的资源分配给合作切片和 MT 作为奖励。由于切片，'和MTs的瞬时资源分配不能通过切片的激励调度算法和MTs设计这两个最优问题得到。最后，我们定义了隔离指标来评估进行合作时的切片隔离度。通过仿真，证明了所提出的激励方案可以有效地刺激合作，因为合作切片和 MT 的吞吐量都得到了提高。并且所提出的激励方案有利于切片和MT满足统计服务质量要求，但对瞬时服务质量要求带来不良影响。通过仿真，证明了所提出的激励方案可以有效地刺激合作，因为合作切片和 MT 的吞吐量都得到了提高。并且所提出的激励方案有利于切片和MT满足统计服务质量要求，但对瞬时服务质量要求带来不良影响。通过仿真，证明了所提出的激励方案可以有效地刺激合作，因为合作切片和 MT 的吞吐量都得到了提高。并且所提出的激励方案有利于切片和MT满足统计服务质量要求，但对瞬时服务质量要求带来不良影响。