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机构地区:[1]南京师范大学物理科学与技术学院,江苏南京210046
出 处:《南京师范大学学报(工程技术版)》2010年第1期80-84,共5页Journal of Nanjing Normal University(Engineering and Technology Edition)
基 金:虚拟地理环境教育部重点实验室开放项目(1640703041-5)
摘 要:为了实现包含语音、图像传输等应用在内的Ad Hoc自组网,提出了将一个无线网络划分为多个微Ad Hoc网的方案,其中,网内的通信方式采用DSR无线路由协议,网间的通信方式采用中继节点间的通信.该方案首先构建了一个基于ARM9平台的无线语音图像传输系统,然后软件设计了DSR无线路由协议,并实现了网内和网间通信的自动转换.应用实践表明,此方案实现的语音质量清晰,图像传输稳定.该系统属于便携式设备,可随时加入或退出网络,在其它有线或无线网络不能覆盖的区域具有广泛的工程应用价值.In order to realize ad hoc networks which included voice and image transmission applications, the solution of dividing a wireless network into several micro ad hoc networks is proposed, in which DSR wireless routing protocols is adopted in means of communication within the network and communication between the relay nodes is used in communication between the network. First, it constructs a platform based on ARM9 for wireless voice and image transmission sys- tems, then designs the DSR routing protocol by software, and realizes the auto conversion of communication within and between the network. The practice indicates that this system achieves clear voice quality and stability image transmission. It's a portable device, can join or quit the network at any moment, and has broad application value where other network eanl cover.
关 键 词:自组网 DSR NRF2401 NRF24Z1 JPEG解码
分 类 号:TN919.72[电子电信—通信与信息系统]
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