Research On Adaptive Double Clocks Probalility Random Multi-channel Access Protocol

Nowadays,random multiple access communication theory has been regarded as one of the key and foundermental research theory for communication protocol.It can provide the support and result in analysis,research as well as application for Wireless Local Area Network,Erthernet and Mobile Communication Network.Although the wireless communication network has developed rapidly,the users are always looking forward to more effective network service.Supported by the National Natural Science Found(No.61461053,No.61461054,No.61072079),the research works in this dissertation focus on the further research and application for CSMA protocol for improving the performance of CSMA protocol.In this parper,author put forward four kinds of random multiple access protocols,and provide.The function expression,which comes from the mathematical model,characterizes the performance of the proposed model.In this dissertation,the main works and innovation points are presented as follows:Firstly,a kind of improved CSMA protocol with double clocks is investigated based on p-sense CSMA protocol:Adaptive Double clocks p-sense random multi-channel access protocol(AMP).The throughput of AMP is analyzed based on the Average Cycle Analysis Method.Compared with p-sense CSMA protocol,AMP protocol is more efficient in the aspect of channel access efficiency and throughput performance.Secondly,the protocol of Adaptive double clocks two-dimensional probability random multi-channel access protocol(ADMTP)is proposed.By modeling the throughput and priority throughput of ADMTP,controls parameter is analyzed and deduced to realize load-torque-adaptive.Simulation experiments have shown that the throughput and priority throughput of ADMTP are superior to the traditional protocol.Thirdly,the protocol of Adaptive double clocks three-dimensional probability random multi-channel access protocol(ADMTTP)is proposed.In order to improve the quality of service(QoS)in wireless communication network and channel resource utilization target as the guidance for the proposed ADMTTP agreement.Setting up a stick to send probability and continuous listening probability,and the throughput is deduced on the basis of further analysis,meanwhile the arrival rate on the channel is associated with three probability value of the function.It is concluded that the numerical simulation results and theoretical analysis has a good consistency,which reveal that the throughput of the wireless communication network based on ADMTTP agreement is higher.By comparing with the five traditional protocols,the proposed four protocols in this dissertation have better performance.Finally,a kind of improved protocol of ADMTTP is investigated:Adaptive double clocks three-dimensionalprobability random multi-channel access protocol based on RTS/CTS mechanism(RADMTTP).In order to solve the hidden terminal problem in a wireless network,RADMTTP is researching the energy efficiency issues in wireless sensor network.On the basis of RTS/CTS handshake mechanism,the throughput and the priority of the RADMTTP have been deduced,then three adaptive probability value of the load function expression are obtained.Through the above theoretical analysis,the battery model is useing to calculate average power consumption and lifetime of wireless sensor network.Experimental simulation indicates that the performance of RADMTTP is better than that of ALOHA of wireless sensor network.