Abstract
Current video-surveillance systems typically consist of many video sources distributed over a wide area, transmitting live video streams to a central location for processing and monitoring. The target of this paper is to present an experience of implementation of a large-scale video-surveillance system based on a wireless mesh network infrastructure, discussing architecture, protocol, and implementation issues. More specifically, the paper proposes an architecture for a video-surveillance system, and mainly centers its focus on the routing protocol to be used in the wireless mesh network, evaluating its impact on performance at the receiver side. A wireless mesh network was chosen to support a video-surveillance application in order to reduce the overall system costs and increase scalability and performance. The paper analyzes the performance of the network in order to choose design parameters that will achieve the best trade-off between video encoding quality and the network traffic generated.
Highlights
Video-surveillance systems are very important in our daily lives due to the number of applications they make possible
The target of this paper is twofold: describing a real experience based on a new wireless video-surveillance network (WVSN) architecture, defined by the authors, which is based on a wireless mesh network as the interconnection backbone; analyzing its performance in order to evaluate some protocol and implementation issues, and provide some insights into the choice of design parameters that will optimize the quality of video received at destination by the processing proxy server
We will analyze the performance of the wireless video-surveillance system described so far, and the quality of service (QoS) perceived at the Processing proxy server (PPS) video processor block, which is crucial for the detection of suspicious events
Summary
Video-surveillance systems are very important in our daily lives due to the number of applications they make possible. The target of this paper is twofold: describing a real experience based on a new WVSN architecture, defined by the authors, which is based on a wireless mesh network as the interconnection backbone; analyzing its performance in order to evaluate some protocol and implementation issues, and provide some insights into the choice of design parameters that will optimize the quality of video received at destination by the processing proxy server. This can be achieved by trying to obtain the best trade-off between video encoding quality and the network traffic generated at the source side, and using suitable routing algorithms in the wireless mesh network.
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