Abstract. Video sensors are used in wireless multimedia sensor networks (WMSNs) to enhance the capability for event description. Due to the limited transmission capacity of sensor nodes, a single path often cannot meet the requirement of video transmission. Consequently, multipath transmission is needed. However, not every path found by multipath routing algorithms may be suitable for transmitting video, because a long routing path with a long end to end transmission delay may not satisfy the time constraint of the video. Furthermore, each video stream includes two kinds of information: image and audio streams. In different applications, image and audio streams play different roles, and the importance levels are different. Higher priority should be given to the more important stream (either the image stream or the audio stream) to guarantee the using of limited bandwidth and energy in WMSNs. In this paper, we propose a Multipriority Multipath Selection (MPMPS) scheme in transport layer to choose the maximum number of paths from all found nodedisjoint routing paths for maximizing the throughput of streaming data transmission. Simulation results show that MPMPS can effectively choose the maximum number of paths for video transmission.
MPMRS decomposes the video stream into two kinds of stream before sending it, and then chooses two different paths to forward them REF .
Multipriority Multipath Selection for Video Streaming in Wireless Multimedia Sensor Networks
UIC
Computer Science