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UWB (Ultra Wide Band) technology is a reliable transmission scheme for wireless communication with high data rates. It is called as impulse radio, impulse radar or carrier free ultra high resolution scheme. UWB is defined as signals with fractional band width more than 20% of its central frequency or as signals with bandwidth more than 500 MHZ. UWB can be characterized with ultra-short duration pulses...
This paper reports on the results of service performance in FON network - Wi-Fi network where each hotspot has its owner, Fonero, who has priority in service, and the right to grant access to the limited number of visitors of his hotspot. Simulation model developed assuming that users in FON behave similar to the users in Wi-Fi, and taking into account service priority of Fonero. Results of simulation...
This paper proposes a novel fine granularity scalability coding framework with hybrid open-close loop structures (KRPS-FGS) based on key reference picture. The open-structure with single prediction loop is exploited to code non-key frames to achieve the best coding efficiency, which uses the highest quality image as the reference picture for both base and enhancement layer. To control drift, some...
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