Research on Cross - layer Multicast Routing Algorithm Based on Cognitive Ad Hoc Network

With the rapid development of computer, information dissemination is becoming more and more important. A variety of information dissemination technology and communication concepts continue to emerge. The latest Ad Hoc network has a wide range of applications in military, disaster relief and other aspects, to facilitate people's lives. This paper first introduces the concept and research status of Ad Hoc, and compares it with other network systems. Through the optimization of the coverage rate and throughput performance of the tree-like PUMA (Protocol for Unified Multicasting through Announcements) algorithm, the CL-CRPUMA (Cross layer-CRPUMA) algorithm is proposed to realize the design and application of the cross-layer multicast routing algorithm of Ad Hoc network. It is intended to provide the mobile computer network development technology with some guidance advice.