Wireless multimedia sensor networks (WMSNs) are increasingly being deployed for\nsurveillance and monitoring applications. WMSNs applications produce large amount of data, which\nrequire high transmission rates. An efficient and seamless delivery of multimedia services in WMSNs\nis still a challenging task. This article proposes an intelligent video surveillance platform (IVSP) for\nwireless multimedia sensor networks. IVSP presents the design of a networked system for joint rate\ncontrol and error control of video over resource-constrained embedded devices. First, a combination\nof two different congestion indicators is introduced to differentiate between congestion levels and\nhandle them accordingly. Second, a feedback-based rate controller is developed to maximize received\nvideo quality, in which sensor nodes can adaptively adjust their sending rates. Finally, a different\nretransmission mechanism for different packets is proposed. Lost packets can be stored temporarily\nand resend when free channel is available to avoid congestion. The core component of IVSP is an\nopen source hardware platform, which is based on Raspberry Pi sensor nodes. IVSP is extensively\nevaluated on 7 Raspberry Pi sensor nodes. We present the results of 7-node real-world deployment\nof IVSP in a video surveillance application and show that it works well in long-term deployments.
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