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Description: tcl脚本代码，ns2 2.9中对wlan网络，载波侦听机制的仿真与分析代码-tcl script code, ns2 2.9 for wlan networks, Carrier Sense mechanism simulation and analysis code
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Size: 3072 |
Author: 孟需 |
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Description: 用NS2仿真802.11b WLAN信道。指出现有NS2代码中的错误，给出SNR、BER的计算公式和代码实现。-Simulate 802.11b Channel within NS2
This document describes how to simulate one 802.11b channel in NS2. It focuses on how to
simulate wireless transmission error due to bad channel quality. That means BER need to be
considered to determine whether one frame is transmitted correctly. To get BER, SNR need to be
calculated. The following sections describe current simulation of transmission error in NS2, the
methods to calculate SNR and BER, and how to incorporate these methods into NS to achieve our
aim--- to simulate 802.11b channels as exactly as possible.
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Size: 115712 |
Author: kjyqcl |
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Description: wimax wlan之间的异构系统级切换仿真源代码 基于ns2平台c++和tcl实现的-simulation source code of handover between wimax and wlan based on ns2 platform using c++ and tcl
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Size: 7372800 |
Author: allan |
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Description: ns2与网络仿真 书籍的光盘源码,需要的朋友可以下载-the source code of the book "ns2 network simulation"
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Size: 640000 |
Author: 朱琳 |
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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 |
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