通信网络实验报告.docx

通信网络实验报告

第一篇：通信网络实验报告通信网络实验报告实验一隐终端和暴露终端问题分析一、实验目的1、2、3、4、了解无线网络中的载波检测机制；熟悉节点的传输范围、冲突干扰范围、载波检测范围和噪声干扰范围的概念；了解载波检测接入体制中存在的隐终端问题和暴露终端问题；结合仿真实验分析载波检测无线网络中的隐终端问题和暴露终端问题。二、实验结果Node:1,Layer:AppCbrClient,(0)Serveraddress:2Node:1,Layer:AppCbrClient,(0)Firstpacketsentat[s]:0.000000000Node:1,Layer:AppCbrClient,(0)Lastpacketsentat[s]:99.990000000Node:1,Layer:AppCbrClient,(0)Sessionstatus:NotclosedNode:1,Layer:AppCbrClient,(0)Totalnumberofbytessent:5120000Node:1,Layer:AppCbrClient,(0)Totalnumberofpacketssent:10000Node:1,Layer:AppCbrClient,(0)Throughput(bitspersecond):409600Node:2,Layer:AppCbrServer,(0)Clientaddress:1Node:2,Layer:AppCbrServer,(0)Firstpacketreceivedat[s]:0.007438001Node:2,Layer:AppCbrServer,(0)Lastpacketreceivedat[s]:99.999922073Node:2,Layer:AppCbrServer,(0)Averageend-to-enddelay[s]:0.739902205Node:2,Layer:AppCbrServer,(0)Sessionstatus:NotclosedNode:2,Layer:AppCbrServer,(0)Totalnumberofbytesreceived:4975616Node:2,Layer:AppCbrServer,(0)Totalnumberofpacketsreceived:9718Node:2,Layer:AppCbrServer,(0)Throughput(bitspersecond):398078Node:3,Layer:AppCbrClient,(0)Serveraddress:4Node:3,Layer:AppCbrClient,(0)Firstpacketsentat[s]:0.000000000Node:3,Layer:AppCbrClient,(0)Lastpacketsentat[s]:99.990000000Node:3,Layer:AppCbrClient,(0)Sessionstatus:NotclosedNode:3,Layer:AppCbrClient,(0)Totalnumberofbytessent:5120000Node:3,Layer:AppCbrClient,(0)Totalnumberofpacketssent:10000Node:3,Layer:AppCbrClient,(0)Throughput(bitspersecond):409600Node:4,Layer:AppCbrServer,(0)Clientaddress:3Node:4,Layer:AppCbrServer,(0)Firstpacketreceivedat[s]:0.003058001Node:4,Layer:AppCbrServer,(0)Lastpacketreceivedat[s]:99.993058001Node:4,Layer:AppCbrServer,(0)Averageend-to-enddelay[s]:0.003119031Node:4,Layer:AppCbrServer,(0)Sessionstatus:NotclosedNode:4,Layer:AppCbrServer,(0)Totalnumberofbytesreceived:5120000Node:4,Layer:AppCbrServer,(0)Totalnumberofpacketsreceived:10000Node:4,Layer:AppCbrServer,(0)Throughput(bitspersecond):409612三、实验结果分析通过仿真结果可以看出，节点2无法收到数据。由于节点3是节点1的一个隐终端，节点1无法通过物理载波检测侦听到节点3的发送，且节点3在节点2的