Inter-Area Interference Modeling in Distributed Wireless Mobile Ad Hoc Networks

Distributed wireless mobile ad hoc network has superiority of flexible networking, powerful extensibility, and low cost of operation and maintenance. Compared with the centralized ones, the distributed network can effectively solve a series of problems, such as the increase in operation and maintenance costs, the complex setting of center nodes, performance deterioration in large-scale scenarios, and hard to optimize routing. It has broad application prospects in ultra-dense networks of fifth-generation, distributed device-to-device communication, and industrial wireless sensor networks. Due to the absence of a control center, interference coordination in distributed network can only rely on the maintenance of neighbors. This paper first establishes the model of link interference and successful transmission probability under different hops of neighbor maintenance. We discover that the existing protocols with two-hop neighbor maintenance have serious inter-area interference which can jeopardize the performance, and maintaining three-hop neighbors have a 6-dB gain of receivers’ signal interference ratio. Hereby, this paper proposes and verifies a scheduling and channel reuse protocol under three-hop neighbor maintenance, laying a solid foundation for the practical application of distributed network.