认知社会物联网中能量感知的编码机会路由协议

ENERGY-AWARE CODING OPPORTUNISTIC ROUTING PROTOCOL IN COGNITIVE RADIO SOCIAL INTERNET OF THINGS

社会物联网是一种集合人与物关系的新型物联网形式。针对物联网频谱资源匮乏的问题,提出基于认知无线电技术的社会物联网——认知社会物联网(CR-SIoT)。认知社会物联网中频谱资源的动态性、设备的移动性和社会性及业务流的多样性,给路由机制的设计带来更大的挑战。机会路由充分利用无线信道的广播特性机会地传输数据,进而提高网络性能。因此,提出一种面向多业务的能量感知的编码机会路由。路由度量标准考虑了认知社会物联网中的社会属性及能量问题,提出基于拍卖模型的双层候选节点集选择算法和基于博弈论的信道分配算法。同时,为了加快数据传输进程,在所选候选节点传输数据时,采用网络编码技术进行“批量”传输。通过仿真实验验证了该机会路由的有效性。

The social Internet of Things(SIoT) is a new type Internet of Things compiling inseparable relationships between human and devices. In view of the lack of spectrum resources in the Internet of Things,we proposed a social Internet of Things based on cognitive radio technology,called CR-SloT. The dynamic spectrum availability,mobile devices and different types of flows make it more difficult for routing design in CR-SIoT. Opportunistic routing(OR) madefull use of broadcasting characteristics of wireless channels to transfer data to enhance network performance. In this work,we proposed an energy-aware coding OR in CR-SIoT for multi-service. Routing metrics took into account the social attributes and energy issues in the CR-SloT,then we proposed two layers candidate node set selection algorithm based on auction model and channel allocation algorithm based on game theory. In order to speed up the data transmission process,network coding technology was used to transmit data in batches at selected nodes. The effectiveness of this opportunistic routing was verified by simulation experiments.