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[Internet-Network] 802_11e

Description: implementation of mac 802.11e in ns2 simulator
Platform: | Size: 64512 | Author: rosa | Hits:

[Internet-Network] analyze

Description: trace file analyzer mac analysis in ns2
Platform: | Size: 1024 | Author: tahir | Hits:

[Internet-Network] mesh_NS2

Description: 基于NS2的无线Mesh网络的MAC层的协议，IEEE802.16-NS2 for Wireless Mesh Networks based on the MAC layer protocol, IEEE802.16
Platform: | Size: 22528 | Author: yaya | Hits:

[Program doc] NS-2.31802.11Mac-translation-explain

Description: NS-2.31的802.11Mac层函数详细的操作注释与流程图-NS- 2.31 802.11 Mac layer function 2.31 in 1990 detailed operation comments and flow chart
Platform: | Size: 789504 | Author: 黄昌平 | Hits:

[Technology Management] stage

Description: The sensor networks application domain continues to increase with the need for an effective security mechanism. The fact that WSN often deal with sensitive data operating in hostile and unexpected environments, makes the concept of security considered essential. However, because of limited resources and low computing capacity of a sensor node, the development of a mechanism that ensures security is a real design challenges. In this report we have tried to propose a new security mechanism dedicated to WSN. Our main objective is to secure the process of transferring data to the base station. The proposed protocol protects transferred data against intruder nodes attacks, using a security mechanism based on the use of control message MAC (Message Authentication Code) for authentication. Our protocol performances are evaluated using the simulator NS2.
Platform: | Size: 2359296 | Author: magazana | Hits:

[Internet-Network] Understanding-the-implementation-of-IEEE-MAC-802.

Description: Understanding the implementation of IEEE MAC 802.11 standard in NS2
Platform: | Size: 100352 | Author: JinUk | Hits:

[Communication-Mobile] Wireless-multimedia-sensor-networks

Description: 本文着重研究网络中使用的MAC协议对语音传输过程的影响，以及无线传 感器网络中适用的语音编码算法。本文首先综述了现有无线传感器网络中常用 的MAC协议，对这些协议进行了分析比较。提出了一种新的基于TDMA的MAC 协议VR-TDMA，为了测试提出的协议性能，在NS2仿真平台上对该协议进行 了仿真，结果证明该协议具有良好的实时性能。然后研究了几种常用语音编码 算法的性能，通过比较研究，认为ADPCM语音编码算法的性能符合无线传感 器网络应用的要求，并对该算法进行了简化，减少了算法运行的计算量。实际 测试表明，算法具有良好的性能。 -In this paper,we concentrate on the mac protocols of wireless sensor networks， especially the impact imposed on speech transmition．We also want to find a speech coder which is fit for wireless sensor networks．Firstly,we intorduce the existing mac protocol，such aS IEEE802．1 1，SMAC protocol，TRAMA protocol，DMAC protoc01． Moreover we analyse and make comparison of them．Secondly，we propose a new mac protocol named VR-TDMA．Simulation in NS2 proves that this protocol Canhave pleasing performance in real．time application．Thirdly,we make a comparison of some famous speech encoders．The result indicates that ADPCM(Adaptive Di脏rential Pulse Code Modulation)is simpler than advanced low bit。rate VOICe coding techniques and doesn’t require as heavy caculations．In this work，We simplify the algorithm in order tO make it fit for the networks beaer．Actual tests prove that this simplified algorithm work well in wireless sensor networks．
Platform: | Size: 3294208 | Author: 曾晓丽 | Hits:

[Internet-Network] mac-802_11Ext.h.tar

Description: modified mac-802_11Ext.h file ns2.34 for ubuntu-modified mac-802_11Ext.h file ns2.34 for ubuntu
Platform: | Size: 7168 | Author: vinoth | Hits:

[Internet-Network] cognitive-mac-coexistence

Description: In last decades, the demand of wireless spectrum has increased rapidly with the development of mobile communication services. Recent studies recognize that traditional fi xed spectrum assignment does not use spectrum effi ciently. Such a wasting phenomenon could be amended after the present of cognitive radio. Cognitive radio is a new type of technology that enables secondary usage to unlicensed user. This paper presents an Opportunistic Cognitive MAC Protocol (OC-MAC) for cognitive radios to access unoccupied resource opportunistically and coex- ist with wireless local area network (WLAN). By a primary traffi c predication model and transmission etiquette, OC-MAC avoids producing fatal damage to licensed users. Then a ns2 simulation model is developed to evaluate its performance in scenarios with coexisting WLAN and cognitive network.-In last decades, the demand of wireless spectrum has increased rapidly with the development of mobile communication services. Recent studies recognize that traditional fi xed spectrum assignment does not use spectrum effi ciently. Such a wasting phenomenon could be amended after the present of cognitive radio. Cognitive radio is a new type of technology that enables secondary usage to unlicensed user. This paper presents an Opportunistic Cognitive MAC Protocol (OC-MAC) for cognitive radios to access unoccupied resource opportunistically and coex- ist with wireless local area network (WLAN). By a primary traffi c predication model and transmission etiquette, OC-MAC avoids producing fatal damage to licensed users. Then a ns2 simulation model is developed to evaluate its performance in scenarios with coexisting WLAN and cognitive network.
Platform: | Size: 177152 | Author: eng | Hits:

[Internet-Network] s-mac

Description: 上网发现s-mac的ns2代码真的很少。我的压缩包里是师妹编的smac.tcl以及一些分析文件- The compression bag contains smac.tcl and some of the analysis file
Platform: | Size: 482304 | Author: 郭巍鑫 | Hits:

[Industry research] mac.pdf.tar

Description: Understanding file system of ns2 for implementing own mac layer
Platform: | Size: 24576 | Author: prashub | Hits:

[Other] implementation-of-IEEE-802.11in-NS2

Description: 这是一本基于NS2网络仿真软件实现IEEE 802.11 MAC协议的书籍，很实用，上传供大家一起学习，一起进步。-This is a book the IEEE 802.11MAC NS2 network simulation software, very useful, uploaded for everyone to learn together, together with progress.
Platform: | Size: 100352 | Author: yb | Hits:

[CSharp] s-mac.c.h

Description: ns2网络仿真中需要的s-mac协议s-mac.h和s-mac.c文件-NS2 network simulation of S-MAC protocol s-mac.h and s-mac.c files
Platform: | Size: 24576 | Author: 蔡亮 | Hits:

[Internet-Network] mac-802_11

Description: ns2中对于无线mac802.11功能的实现，很长-in ns2, the function implement of wireless mac802.11
Platform: | Size: 16384 | Author: ihungo | Hits:

[Program doc] multi-mac

Description: explanation about ns2
Platform: | Size: 171008 | Author: omid | Hits:

[Internet-Network] Multichannel-Mac-implementation-

Description: 多信道MAC协议。在NS2协议下的开发，可以使用。-multi channel mac routing protocol
Platform: | Size: 64512 | Author: yin | Hits:

[Internet-Network] ns2-project.tar

Description: ns2 installation file foe ubuntu windows mac
Platform: | Size: 3072 | Author: Bashima Islam | Hits:

[Other] ns2.1b8_802.11_mac_pcf

Description: 802.11 PCF模式在NS2.1b8的实现-ns2.1b8 802.11 mac pcf
Platform: | Size: 31744 | Author: donglin | Hits:

[Internet-Network] ns2.28_mac_patch

Description: ns2.28 MAC层代码的补丁，解决了一些ns2.28源代码的bug-ns2.28 mac patch
Platform: | Size: 3072 | Author: donglin | Hits:

[Linux-Unix] B-MAC

Description: implement B-MAC protocol in NS2
Platform: | Size: 3072 | Author: khalil | Hits:
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