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標題: 可調整位元功率與碼重之二維光纖分碼多工系統
Two-Dimensional Optical CDMA Systems with Adjustable Bit Power and Code Weight
作者: 朱涵筠
Chu, Han-Yun
關鍵字: Code-weight variation;可變碼重;Multimedia;Optical code division multiple access;Power control;Quality of service.;多媒體;光纖分碼多工;功率控制;服務品質
出版社: 電機工程學系所
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Since transmission technologies of variety of multimedia services, such as data, voice, video, have made great progress recently, using bandwidth efficiently and providing different transmitting rates and qualities of these multimedia services turn into an important research topic. In this thesis, we combine the methods of code-weight variation and power control in order to provide differential quality-of-service (QoS) in multimedia optical code-division multiple access. An approximation model of performance analysis is developed to investigate the interaction of both methods. For illustration, we focus our study on double-weight codes with different bit powers. Our results show that the QoS of double-weight codes can be fine-tuned by controlling both code weight and bit power. Finally, we formulate a procedure for users to select code weights and bit powers in accordance with targeted code performances or the number of transmitting codes.
其他識別: U0005-0308201017364900
Appears in Collections:電機工程學系所

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