Computer Architecture Department, Technical University of Catalunya, Barcelona, Spain.
Sensors (Basel). 2010;10(7):6662-717. doi: 10.3390/s100706662. Epub 2010 Jul 9.
Wireless Multimedia Sensor Networks (WMSNs) have emerged and shifted the focus from the typical scalar wireless sensor networks to networks with multimedia devices that are capable to retrieve video, audio, images, as well as scalar sensor data. WMSNs are able to deliver multimedia content due to the availability of inexpensive CMOS cameras and microphones coupled with the significant progress in distributed signal processing and multimedia source coding techniques. In this paper, we outline the design challenges of WMSNs, give a comprehensive discussion of the proposed architectures, algorithms and protocols for the different layers of the communication protocol stack for WMSNs, and evaluate the existing WMSN hardware and testbeds. The paper will give the reader a clear view of the state of the art at all aspects of this research area, and shed the light on its main current challenges and future trends. We also hope it will foster discussions and new research ideas among its researchers.
无线多媒体传感器网络 (WMSN) 的出现改变了传统的仅关注标量无线传感器网络的局面，转而聚焦于能够获取视频、音频、图像以及标量传感器数据的多媒体设备的网络。由于廉价的 CMOS 摄像头和麦克风的出现，以及分布式信号处理和多媒体源编码技术的显著进步，WMSNs 能够传输多媒体内容。在本文中，我们概述了 WMSN 的设计挑战，全面讨论了 WMSN 通信协议栈各层的架构、算法和协议，并评估了现有的 WMSN 硬件和测试平台。本文将使读者清楚地了解该研究领域的最新技术水平，并揭示其当前的主要挑战和未来的发展趋势。我们还希望它能够促进研究人员之间的讨论和新的研究思路。
