无线多媒体传感器网络能量均衡的多跳图像传输机制

发布时间：2018-01-24 01:36

本文关键词： 无线多媒体传感器网络多跳图像传输能量消耗能量均衡网络生存期　出处：《计算机工程与科学》2017年11期 　论文类型：期刊论文

【摘要】：针对由普通节点和图像节点组成的异构无线多媒体传感器网络,提出了基于图像节点邻域协作压缩的多跳图像传输机制MHIT。该机制在发送图像前,首先根据传输距离和路由跳数判断是否需要压缩图像,若压缩图像后再传输消耗更多能量,则直接发送图像;否则,图像节点将图像压缩任务分发给邻域内的普通节点协作完成,均衡了网络能量消耗,极大地缓解了图像节点的能耗压力。实验结果表明,MHIT有效解决了无线多媒体传感器网络因图像压缩而引发的能量空洞问题,明显延长了网络生存期,特别适合于大规模无线多媒体传感器网络远距离图像传输。
[Abstract]:For heterogeneous wireless multimedia sensor networks composed of ordinary nodes and image nodes, a multi-hop image transmission mechanism MHIT-based on the basis of neighborhood cooperative compression of image nodes is proposed, which is prior to sending images. First of all, according to the transmission distance and the number of routing hops to determine whether the need to compress the image, if the compression of the image after transmission consumes more energy, then directly send the image; Otherwise, the image node distributes the image compression task to the common node in the neighborhood to complete the task, which equalizes the network energy consumption and greatly reduces the energy consumption pressure of the image node. The experimental results show that. MHIT effectively solves the problem of energy hole caused by image compression in wireless multimedia sensor networks, and obviously prolongs the lifetime of wireless multimedia sensor networks. It is especially suitable for remote image transmission in large scale wireless multimedia sensor networks.
【作者单位】：天津大学电气自动化与信息工程学院;海南大学信息科学技术学院;
【基金】：国家自然科学基金(61363071,61571318) 海南省重点研发资助项目(ZDYF2016153)
【分类号】：TN919.8;TP212.9
【正文快照】： 存储和通信能力的多媒体传感器节点组成的分布1　引言式感知网络,网络中的多媒体传感器节点能够感知周围环境的各种信息(图像、音频、视频),通过多跳无线多媒体传感器网络WMSN(Wireless中继方式将信息传给用户[1]。通过WMSN采集Multimedia　Sensor　Network)是一组由具有计算

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