Multipoint-to-Point Communication for IoT and its Application to Ubiquitous Video Surveillance System

• Main Authors: Te-Chih Wang, 王德智
• Other Authors: 張瑞益
• Format: Others
• Language: en_US
• Published: 2015
• Online Access: http://ndltd.ncl.edu.tw/handle/73210613554362275072

博士 === 國立臺灣大學 === 工程科學及海洋工程學研究所 === 103 === Video surveillance systems are playing an important role to protect lives and assets of individuals, enterprises and governments. Due to the prevalence of wired and wireless access to Internet and fast grow-up of Internet of Things (IoT), it would be a trend to integrate present isolated video surveillance systems by applying distributed computing environment and to further gestate diversified multimedia intelligent surveillance (MIS) applications in ubiquity. In this dissertation, we firstly discuss the surveillance service models and propose a multicast based ubiquitous video surveillance (UVS) architecture with scalability, ubiquity and privacy. We also constructed an experimental test-bed for UVS system with three kinds of services, fire detection, fall-incident features and video recording, to demonstrate the effectiveness of the proposed architecture. Besides, we took the advantage of multipoint-to-point (MPP) connections to aggregate more bandwidth to gain user-perceived Quality of Experience (QoE) and network Quality of Service (QoS) for the surveillance cameras that has limited uplink bandwidth. A forward error avoidance mechanism is proposed within P-R2CP (Prioritized Radial Reception Control Protocol), a receiver-centric transportation protocol with priority consideration, to be feasible for IoT MIS applications. The simulation result demonstrates the effected frames are significantly 74.4% decreased and improves the QoS and QoE.