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1、目錄1. 緒論 ....................................................................................................................................................11.1. 研究的目的和意義 .................................................

2、...................................................................11.2. 論文研究的背景 ........................................................................................................................11.3. 論文研究?jī)?nèi)容安排 ....

3、................................................................................................................12. 多址接入?yún)f(xié)議概述 ...............................................................................................

4、.............................32.1. 網(wǎng)絡(luò)參考模型 ............................................................................................................................32.1.1. OSI 參考模型 .....................................

5、................................................................................32.1.2. TCP/IP 參考模型 ...............................................................................................................32.2. 多址接

6、入?yún)f(xié)議概述 ....................................................................................................................42.2.1. 多址接入?yún)f(xié)議的分類 ................................................................................

7、........................42.3. 隨機(jī)多址接入?yún)f(xié)議 ....................................................................................................................52.3.1. 完全隨機(jī)多址接入?yún)f(xié)議 ..............................................

8、......................................................52.3.2. 純 ALOHA（非時(shí)隙 ALOHA）協(xié)議 ......................................................................................62.3.3. 時(shí)隙 ALOHA 協(xié)議 ...............................

9、.................................................................................92.3.4. CSMA 協(xié)議 .........................................................................................................................11

10、2.4. 本章小結(jié) ..................................................................................................................................133. 多址接入?yún)f(xié)議仿真模型 ................................................................

11、..................................................143.1. 仿真系統(tǒng)模型 ..........................................................................................................................143.2. 仿真場(chǎng)景的建立 ...................

12、...................................................................................................143.3. 通信信道模型 ...........................................................................................................

13、...............153.4. 業(yè)務(wù)源模型 ..............................................................................................................................153.5. 仿真時(shí)對(duì)碰撞的處理 .................................................

14、.............................................................153.6. 本章小結(jié) ..................................................................................................................................154. 隨機(jī)多址接入?yún)f(xié)議的仿真

15、..............................................................................................................164.1. 程序流程圖 .................................................................................................

16、.............................164.1.1. 仿真基本流程圖 ..............................................................................................................164.1.2. 純 ALOHA 協(xié)議的仿真程序流程圖 ....................................

17、..............................................174.1.3. 時(shí)隙 ALOHA 協(xié)議的仿真程序流程圖 ..............................................................................184.1.4. 非持續(xù)性載波監(jiān)聽（np-CSMA）協(xié)議的仿真程序流程圖 ..............................

18、..............204.2. 仿真結(jié)果和分析 ......................................................................................................................214.2.1. 純 ALOHA 協(xié)議的仿真 ..................................................

19、....................................................214.2.2. 時(shí)隙 ALOHA 協(xié)議的仿真 ..................................................................................................224.2.3. 非持續(xù)性載波監(jiān)聽（np-CSMA）協(xié)議的仿真 ..............

20、..................................................244.3. 本章小結(jié) ..................................................................................................................................255. 結(jié)論 ....................

21、..............................................................................................................................26致謝 .........................................................................................

22、.....................................................................27參考文獻(xiàn) ................................................................................................................................................

23、......28Simulation of Multiple Access protocol based on MATLABAbstractIn the communicate network, we must abide by some rules to exchange date successfully. Such rules is referred to as network protocol. Multiple access

24、 is the principle which ensure successfully information transmissions by the users who use the same transmission medium. Multiple access is necessary when the resource is used by more than one independent user. Random mu

25、ltiple access protocol is the competitive mode of multiple access.In this paper, the classification, basic principle and performance parameter of multiple access were studied firstly. Secondly, the simulation model of mu

26、ltiple access was set up. The simulation of ALOHA protocol and non-persistent CSMA protocol was also realized by MATLAB. Finally, the parameter was analyzed.The efficiency of the pure ALOHA who has simple working princip

27、le is very low. Slot-ALOHA protocol is improved on the original basis, but its performance is still poor. The utilization of channel has been greatly improved with CSMA protocol by the use of carrier sense.Key Words: Mul

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