OFDMA 시스템에서 비디오 전송을 위한 효율적인 채널 할당An efficient channel allocation for video transmission in OFDMA systems

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The mobile and multimedia service on wireless network have been leaded from the improvement of telecommunication techniques. A typical multimedia service, a video transmission usually requires larger bandwidth than voice transmission. Many channel allocation algorithms for Orthogonal Frequency Division Multiple Access (OFBMA) to use resources more efficiently, Previous channel allocation algorithms have developed with an assumption that the data traffic is constant bit rate (CBR). However, existing algorithms are not suitable to video traffic because it usually generates a variable bit rate (VBR) traffic. In this paper, we proposed a new channel allocation algorithm called a queue-based channel allocation. it is more suitable to transmit the video traffics. Also, a problem are notified in case of realtime generated video traffic and a corresponding heuristic solution was proposed.
Publisher
한국경영과학회
Issue Date
2007-11-09
Language
KOR
Citation

한국경영과학회 2007 추계학술대회

URI
http://hdl.handle.net/10203/163392
Appears in Collection
IE-Conference Papers(학술회의논문)
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