Multimedia Communications with Multi-channel Transceiver in WSNs

• Main Authors: Hsu,Chia Yu, 徐嘉佑
• Other Authors: Chang,Lin huang
• Format: Others
• Language: zh-TW
• Published: 2014
• Online Access: http://ndltd.ncl.edu.tw/handle/3v2p25

碩士 === 國立臺中教育大學 === 資訊工程學系 === 102 === Over the past few years, wireless sensor network (WSN) has become the main technology to monitor environmental and physical phenomena. As the technology matures, even in the Zigbee network it is possible to send multimedia streaming data. Therefore, the main purpose of this thesis is to provide real-time services in the Zigbee network. The design and implementation of the thesis will provide real-time multimedia streaming multi-channel transceiver, which combined voice compression technology open source Speex and video compression technology, open source x264 to reduce the amount of multimedia streaming data. Open source x264 this research will make use of multi-hop to extend its communication distance over Zigbee network. Due to the Characteristics of short transmission distance and low transmission rate for WSN. The main purpose of this thesis is to provide the transmission of multimedia data will maintaining multimedia quality of service in WSNs. This thesis deployed a chain topology design to extend the transmission distance and combine multi-radio multi-channel scheduling mechanism with transmission technology to improve the overall network throughput, latency, in order to maintain long-distance transmission of real-time. Finally, carry on multimedia transmission and measurement at different distances, and analyze the effect about Quality of Service with compression technology, Packet loss and delay. Finally the thesis conducted a testbed with different transmission distances and scenario to analyze the quality of multimedia service using purposed multi-radio multi-channel media in WSNs