面向物联网中H2H与M2M共存场景下的异构资源分配方法研究

未来物联网将是一个机器和机器（M2M）通信和人与人（H2H）通信共存的异构无线网络。现有的资源管理算法直接应用物联网存在很多挑战：1）传统的网络选择接入算法没有同时考虑H2H和M2M业务特性；2）传统的用户分配策略没有考虑M2M业务上行传输的特点和M2M通信节点的能耗；3）大多数现有共存场景下的资源分配策略仅考虑用资源受限的单个网络保障两类业务传输需求。因此，在面向未来物联网的H2H和M2M业务共存场景中，本课题拟研究能够满足异构设备不同服务质量需求并提升网络资源利用率的资源分配方法。具体如下：首先，从节点的角度出发，设计根据H2H和M2M业务特性的柔性接入控制策略；然后，从基站的角度出发，根据柔性接入控制策略研究成果，设计适用于超密集网络中能量有效的联合接入控制的上行用户分配策略。最后，从网络的角度出发，结合前两个研究成果，设计基于异构无线网络云基于频谱资源池化的异构资源分配方法。

It is reasonable to foresee that the Internet of Things (IoT) would be a heterogeneous wireless network with machine-to-machine (M2M) communications and human-to-human (H2H) coexistence. There are many challenges if the existing communication protocols and resources management algorithms are used directly in IoT:1) the tradition network selection schemes don’t consider the characteristics of both H2H and M2M traffic; 2) the existing user association schemes don’t consider the characteristics of uplink M2M traffic and M2M nodes’ energy consumption; 3) resource-constrained signal network can’t satisfy communication requirements of both the HTC users and MTC devices. Thus, this proposal will address the problem of resources allocation in future IoT with H2H and M2M coexistence. Specifically, the research contains the following three parts. Firstly, from the point of view of nodes, we propose a flexibility access control scheme based on the H2H and M2M traffic characteristics in wireless networks. Secondly, from the point of view of base stations, based on the flexibility access control scheme, we study engery efficient user association scheme for uplink ultra-dense heterogeneous cellular networks with H2H and M2M coexistence. Finally, from the point of view of networks, according to the first two research results, we propose a heterogeneous resources allocation scheme based on spectrum pooling for the H2H and M2M communications. This method can improve the network capacity obviously, satisfy the different QoS requirements of both the H2H and M2M traffic.