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—This paper presents an efficient ARQ protocol, called WO-RANC, to enhance coverage and performance of IEEE 802.11p. WO-RANC exploits relay-assisted network coding and work-based wide-sense opportunistic retransmission. Relay nodes with strong connectivity to destinations opportunistically deliver information to the destinations on behalf of sources, thus(More)
—For lifetime extension, energy-efficient medium-access control (MAC) protocols designed for battery-powered wireless sensor networks (WSNs) usually enable nodes to operate in low duty cycle. However, without offline change in system parameters, existing protocols either save energy at a cost of long latency or work well only for a narrow range of traffic(More)
In this paper, we address the problem of detecting and segmenting partial image blur from a single input image. Instead of assuming particular image priors or requiring additional user annotation, we propose a novel learning framework which jointly solves the tasks of blur kernel estimation and image blur segmentation, so that partial image blur can be(More)
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