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In this paper we proposed a high accuracy automatic timing method for photo finish systems, as manual detection is subjective and time-consuming. Athlete objects are detected and extracted automatically, effective interferences elimination algorithm is proposed for torso locating and finish line detection. The effectiveness of this method is verified by 2511 samples from 390 track events' original...
This paper proposes a spatial time-division multiple access (STDMA) based scheme (STBS) to enhance the system throughput in cognitive radio wireless networks. Especially, the proposed scheme is suitable for the situation when the available number of channels is far less than the number of secondary users (SUs). The system design includes: 1) a novel criterion based on SINR constraint (SC) to determine...
IEEE 802.22 is the first worldwide wireless standard based on Cognitive Radio (CR) for Wireless Regional Area Networks (WRAN). Usually, Secondary Users (SUs) have to be interrupted periodically for spectrum sensing so as to avoid interference to Primary Users (PUs) operating in the licensed bands. Such interruptions of data transmission, however, impair the Quality of Service (QoS) of SUs. Dynamic...
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