文档介绍：一种新的支持移动sink的多媒体传感器网络路由协议
汤子隆程良伦
(广东工业大学自动化学院,广州 510006)
摘要:轻便的手提式移动设备已经越来越普及。本文提出了一种新的支持移动sink的多媒体传感器网络路由协议,该协议利用锚节点作为转发节点与移动sink进行通信,避免多媒体传感器节点与sink直接进行远距离通信,在多媒体传感器节点中采用改进的基于地理信息的路由协议建立路由路径。仿真实验表明该协议不仅能支持移动sink,而且能够有效降低节点能耗,延长网络寿命,提高数据传输效率。
关键词:多媒体传感器网络;移动sink;锚节点;基于地理信息的路由协议
中图法分类号:TP393 文献标识码:A
A New Geographic Routing for mobile sink in Wireless Multimedia works
Tang Zi-long Cheng Liang-lun
(Faculty of Automation, Guangdong University of Technology, Guangzhou 510006)
Abstract:Portable mobile devices have been ing more and more popular. This paper proposes a new protocol for mobile sink in multimedia work routing. The protocol uses anchor nodes as forwarding node municate with the mobile sink so that direct long-munications for multimedia sensor nodes and sink can be avoided, and sensor nodes in the multi-media uses an improved geographic greedy forwarding routing protocol to establish the routing path. Simulation results show that the agreement will not only support the sink mobility, but also support nodes to reduce energy consumption, extend work lifetime and improve the efficiency of data transmission.
Keywords:multimedia works; mobile sink; anchor nodes; geographic routing
1 引言
随着监测环境的日趋复杂多变,由传统无线传感器网络(wireless works, WSNs)所获取的简单数据已经不能满足人们对环境监测的全面需求,迫切需要将大量丰富的图像、音频、视频等多媒体信息引入到以传感器网络为基础的环境监测活动中来。因此,基于传统的传感器网络,研究一种新型的具有音频、图像、视频等多媒体信息获取、处理与传输功能的无线多媒体传感器网络(wir