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As the Internet Protocol Television (IPTV) technology advances, IPTV services and customers increase. To attract more customers to raise profits, IPTV service providers usually launch many kinds of sales plans at the same time. Each sales plan has its own billing processing program so that the service subscription events are properly charged. Traditionally, sales plans are packaged case by case and...
The surface of poly(methyl methacrylate) (PMMA) was treated by plasma with an end-Hall ion source in vacuum in order to enhance its anti-reflectivity. The cone-shaped bumps induced by the plasma etching have shown an antireflective effect. Moreover, PMMA has poor thermal durability due to its low melting point; therefore, the etched PMMA was further coated by a 5 nm thick SiO2 film after 900 and 1300...
In this paper, we propose a new packet scheduling algorithm for IEEE 802.16 wireless access systems running time division duplex (TDD) mode. We compare the performance of the proposed algorithm to others in terms of bandwidth and fairness in details. The simulation results show that not only the newly proposed algorithm can handle the dynamic bandwidth allocation to achieve higher throughput, but...
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