能量高效的无线传感器网络跨层MAC协议

ABSTRACTCurrently,WSN's research has focused on network protocols,energy,location,reliability,network infrastructure and data processing issues.Network protocolresearch is one of the hot spot.As an important foundation for WSN network protocolstack architecture.MAC (Medium Access Control,referred to as MAC)protocoldetermines how to use of wireless channel,and responsible allocate wirelesscommunication resources for nodes.so it direct impact on the overall performance ofthe network,become the top priority of WSN Network ProtocolsWSN is task-oriented,The nodes can refer to quite limited resources,especiallyenergy resource,so energy efficiency turns out to be the most important criteria of thecommunication protocols.This paper concentrates on the Cross Layer Designing WSN MAC protocols,themain responsibilities are:(1)the classic contention-based and TDMA-based WSN MAC protocols areintroduced,and analyzes the typical cross-layer MAC protocols(2)after deep research on variety of MAC protocols,through the cross-layerintegration of MAC and routing,propose an E-AIMRP (Enhanced Address-Lightintegrated MAC and Routing Protocl)protocol for high speed wireless sensor networkapplications.The protocol Solve the energy waste issue due to the multi-node testingand reporting and expands single-node test topology model by re-design thetraditional RTS (Request_to_Send)data frame.simulation results show that E-AIRMPEffectively prolong the life of the network(3)MAC protocols in general has many limitations in the energy model,theenergy efficiency in the applications that require high performance is not very good,this is because the use of fixed competition access mode and the same forced wake-upmechanism.In order to solve this problem,we designed a highly efficient energysaving model for E-AIMRP makeing it consumea constant energy as the increasing ofnodes and invents.simulation results show that this model can achieve good energy