Research On Layered Protocol For Ad Hoc Networks Based On The Physical Hierarchical Structure

Along with the rapid development of communication technology, wireless mobileselforganizing (AdHoc) networksareheadingtowardsthedirectionofbecominglarger,and constructing more efficient large scale Ad Hoc networks has become one of theimportantstudymatters inthe militaryandcivilianmobilecommunication. However,asthe problems are brought about by the trend of expansion in the network scale, thetraditional flat single level of hierarchy Ad Hoc network has the problems such asincreasing nodes' relayburden and capacitynear zero,therefore how to design protocolstacks to support the large-scale Ad Hoc Network is a challenging task. Based on theabove background, this paper studiesnetwork construction protocol in order toimprovenetwork capacity and reduce network routing overhead. First, we analyze the Ad HocWireless Networks on improving the capacity of the network and its status. We discussandvalidate thescalability ofexistingAdHocnetworkroutingprotocols bysimulation.Then we present a network hierarchical protocol based on the physical hierarchicalstructure of Mobile Ad Hoc Network.Theoretical analysis and simulation results showthat the performances of the protocol in the network capacity, data packet delivery rateand delay and so on are much better than those of the conventional flat single level ofhierarchy Ad Hoc networks. The network has a more strong scalability. Finally, westudythehierarchical protocolperformanceinthedifferent parameters configuration.Inorder to improve simulation performance of thesuper larger scale Ad Hoc network, wedesign a simulation strategy based on the structure of scheme, and prove the feasibilityofthestrategy.