ABSTRACT
We investigate H.26L [2,3] real-time video communications in video sensor networks (VSNs), where video streams are transmitted under a number of resource and performance constraints such as bandwidth, energy, and delay. Although a high compression ratio makes H.26L real-time video applications suitable for low bit-rate channels, the received video quality is susceptible to transmission errors. Thus, it remains a challenging problem to deliver H.26L video data with a high quality of service (QoS) in WSNs with bandwidth-limited error-prone wireless channels. Owing to the bandwidth limitation of a VSN, we consider only a small number of video sensor nodes (VNs), which have video capturing capability, taking turn to transmit video to a single sink; that is, only one VN transmits video to the sink at any time.
