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Description: p-持续CSMA协议下，一个用户在发送之前，先侦听信道，若是空闲，就以概率p发送出去，而以q =1-p的概率推迟到下一帧时。如果下一帧时仍是空闲，便再次以概率p发送而以q推迟到再下一帧时。直到发送成功或另外一用户开始发送时为止。若一开始就侦听到信道忙，它就等到下一帧时，然后再开始上述过程。若发生冲突，这等待一随机时间后重新开始。本实验中取q值为0.5。求的是0.5-持续CSMA。
-p-persistent CSMA agreement, a user before sending the first interception channel, if idle, with probability p sent, and to q = 1-p probability postponed to the next frames. If the next frame was still idle, they again sent with probability p and q to further postponed to the next frames. Until this a success or other users at the beginning of this date. If an interception at the start of the busy channel, it will wait till the next frames, and then begin the process. If conflict breaks out, waiting for a random period of time after the re-start. The experiments take q value of 0.5. For the 0.5-sustained CSMA.
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Size: 55114 |
Author: fang |
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Description: 1-持续CSMA协议下，当一个用户要发送数据时，它首先侦听信道，看是否有其他站点在传送。如果信道忙，就持续等待直到信道空闲时，便将数据送出。若发生冲突，就等待一个随机长的时间，然后重新侦听。
对于这种协议，先考虑当前帧i时的前一帧时i-1，得到前一帧时的最后一帧frame0（相对时间最大的帧）的相对时间dt0，然后再在当前帧时查看有哪些帧的相对时间会小于dt0，这些帧若是发送就会与frame0发生冲突，所以这些帧就进入持续等待状态，这些帧并没有发送。再考虑当前帧余下的帧（dt > dt0），它们中的第一帧侦听到信道处于空闲状态，所以就发送，而其他的帧由于第一帧的发送又处于等待状态。若有大于或等于2个帧的相对时间相等，且它们又同时侦听到信道空闲时，就会同时发送而导致冲突，冲突发生后的处理方法同上两个协议的一样。
-1 - CSMA continued under the agreement, when a user to send data, it first interception Channel to see if there are other sites in transmission. If Channel busy, continuing to wait until the idle channel, and put more information out. If there is conflict, it is a long wait for a random time, then re-interception. Such agreements, to consider the current frame i am one of the former when i-1, be a time before the final one frame0 (relative to the time frame) the relative dt0 time, and then when the current frame to detect what the relative time frame will be less than dt0, these frames will be sent if and frame0 conflict, these frames would enter the state continued to wait, they do not send frames. Consider the current frame remaining frames (dt gt; Dt0), the interception of the first fra
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Size: 48036 |
Author: fang |
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Description: 非持续CSMA
该协议下，用户在发送帧之前，会先侦听信道的状况，如果没有其他站点发送，它就发送。若信道忙，它就等待一个随机的时间后重复以上动作。
对于某一帧而言，信道是否忙，即是看其绝对时间（FRAMETIME*i+dt）的前一帧时内（FRAMETIME*(i-1)+dt ~ FRAMETIME*i+dt）是否存在发送帧。若无则发送，有则等待一随机时间。
-unsustainable under the agreement, users send frames, will first interception Channel situation, if no other site sent, it sent. If Channel busy, it would wait for a random time to repeat the action. For a frame, whether the busy channel, that is, look at his absolute time (FRAMETIME * i dt) of a time (FRAMETIME * (i-1) dt ~ FRAMETIME dt * i) the existence of this frame. If not then this, then wait for a random time.
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Size: 49517 |
Author: fang |
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Description: 是个印度人编写的CSMA/CD模拟程序~图形界面~-is prepared by the Indian CSMA / CD simulation program GUI ~ ~
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Size: 6122 |
Author: huyien |
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Description: 在网络仿真模拟工具下实现的MAC层最基本的CSMA协议
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Size: 4378 |
Author: kaigo |
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Description: CSMA/SD载波帧冲突检测模拟仿真，采用的是C#
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Size: 369275 |
Author: wyz |
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Description: CSMA的.cc代码。CSMA是为了实现竞争信道时使用的。
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Size: 2734 |
Author: jh |
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Description: cc2510源代码，主要实现点对多点的通讯，采用CSMA方式实现。-cc2510 source code, the main achieve-to-multipoint communication, using CSMA ways.
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Size: 138240 |
Author: chenfenglei |
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Description: This a code for csma-This is a code for csma
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Size: 1024 |
Author: jahanzeb |
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Description: this codesimulate csma algorithm.
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Size: 1024 |
Author: aissan |
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Description: 无线传感器网络中，CSMA-CA算法实验，希望对无线传感器网络的朋友有用-wsn
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Size: 54272 |
Author: 俊 |
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Description: CC1110-CSMA通信程序。在IAR Embedded Workbench 下测试通过，如需在其他环境下使用，可直接编辑目录下的C文件。-CC1110-CSMA communication program. Test with IAR Embedded Workbench is passed, for use in other circumstances, direct editing of the C directory file.
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Size: 620544 |
Author: Wu jian wei |
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Description: CC2510-CSMA通信程序。在IAR Embedded Workbench 下测试通过，如需在其他环境下使用，可直接编辑目录下的C文件。-CC2510-CSMA communication program. Test with IAR Embedded Workbench is passed, for use in other circumstances, direct editing of the C directory file.
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Size: 138240 |
Author: Wu jian wei |
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Description: simulation de csma/cd en c-simulation de csma/cd en c
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Size: 2048 |
Author: ahmed |
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Description: 用一种新的方法解决CSMA通信的效率，仿真结果明显比之前所用的方法要优越。-Use a new method to deal with the communication problem CSMA, the simulation result is the most superior than the formore.
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Size: 308224 |
Author: action |
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Description: 抢占载波监听 模型 opnet教程程序 可以监看网络忙 并延时发送-csma opnet tutorials lesson4 model
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Size: 177152 |
Author: shizijian |
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Description: 使用Java模拟实现CSMA/CD的网络传输过程(Using Java simulation to realize the network transmission process of CSMA/CD)
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Size: 7168 |
Author: 康康000
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Description: 对CSMA协议在OPNET仿真平台上进行的仿真。(Simulation of CSMA protocol on OPNET simulation platform.)
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Size: 92160 |
Author: 爱拼会赢
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Description: 在matlab平台下，实现CSMA/CD协议的仿真(Realization of simulation of CSMA/CD protocol)
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Size: 2715648 |
Author: 抹尘 |
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Description: csma-ca.m：没有争用期,csma/ca的仿真结果；
csma_ca1.m:有争用期,csma/ca的仿真结果;
main1.m:对于csma/ca性能的分析与仿真结果(Csma-ca.m: no contention period, CSMA / Ca simulation results;
CSMA? CA1. M: contention period, CSMA / Ca simulation results;
Main1. M: analysis and simulation results of CSMA / Ca performance)
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Size: 18432 |
Author: 七奇启契 |
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