A Novel DS-UWB Pulses Design Using Genetic Algorithm
學年 97
學期 2
發表日期 2009-04-03
作品名稱 A Novel DS-UWB Pulses Design Using Genetic Algorithm
作品名稱(其他語言)
著者 Liao, Shu-Han; Ho, Min-Hui; Chen, Chien-Hung; Chiu, Chien-Ching; Chung, Wei-Chun
作品所屬單位 淡江大學電機工程學系
出版者 New York: Institute of Electrical and Electronics Engineers (IEEE)
會議名稱 Future Computer and Communication, 2009. ICFCC 2009. International Conference on
會議地點 Kuala Lumpar, Malaysia
摘要 This paper proposes a new pulse design method to improve spectrum utilization rate and reduce the outage probability in ultra wide band (UWB) system. Several third derivative Gaussian waveforms are employed to generate the pulse based on the bandwidth constraint set by the US Federal Communications Commission (FCC) mask. The genetic algorithm (GA) is used to find the optimal pulse parameter. This method is an easy way to achieve in practical circuit implementation compared to one pulse generator, since COMS circuit is hard to produce one pulse with short duration and complex pulse shape. Comparisons with the traditional Gaussian pulse, the synthesis pulse by GA not only satisfy the FCC emission mask but also have high spectrum utilization rate. Simulation results show that the performances in indoor UWB system using the synthesis pulse by GA is better than that using traditional Gaussian pulse. Numerical results show that the synthesis pulse by GA is higher 30 percent of spectrum utilization rate and lower 65 percent of outage probability for the same transmission power, as well as lower 21 percent of outage probability for fixed signal-to-noise ratio (SNR)at the receiver comparing with traditional Gaussian pulse. This proposed method not only use in indoor UWB system but also can extend to different communication system just changing the system object function.
關鍵字 GA;UWB;pulse design
語言 en
收錄於
會議性質 國際
校內研討會地點
研討會時間 20090403~20090405
通訊作者
國別 MYS
公開徵稿 Y
出版型式
出處 Future Computer and Communication, 2009. ICFCC 2009. International Conference on, pp.296-300
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