Qualnet平台下基于扩频的无线传感网物理层建模  

Physical layer modeling for wireless sensor networks based on spread spectrum under Qualnet platforms

作　　者：何洪路[1] 黄河清[1] 姚道远[1] 刘海涛[1] 

机构地区：[1]中国科学院上海微系统与信息技术研究所,上海200050

出　　处：《计算机工程与设计》2008年第1期47-50,共4页Computer Engineering and Design

基　　金：国家863高技术研究发展计划基金项目(2006AA01Z216)

摘　　要：为了建立完整的基于Qualnet的无线传感网仿真研究平台,解决Qualnet所集成的物理层模型对扩频系统支持不完善的问题,提出了一种基于信噪比门限的物理层建模方法,并以IEEE802.15.4为例进行了建模和仿真。仿真结果表明,使用这种建模方法建立的模型可以完全发挥扩频系统的性能,使用该模型的无线传感网仿真系统运行正常。A physical layer modeling strategy based on SINR threshold is proposed to construct a integrated simulation platform for wireless sensor networks in Qualnet. The strategy consummate Qualnet physical layer models for spread-spectrum systems. AIEEE802.15.4 physical layer model is constructed and simulated as an illustration. Simulations show that models constructed using the strategy guarantee the performance of spread-spectrum systems. Wireless sensor network simulation system based on the model works well.

关 键 词：无线传感网 Qualnet仿真平台 IEEE802.15.4协议 扩频 物理层 

分 类 号：TP212.9[自动化与计算机技术—检测技术与自动化装置]