Combined-Waveform Design Method and Its Application in Ultra-Wideband Pulse Shape Multiple Access
In impulse radio Ultra-Wideband (IR-UWB) systems, Rayleigh pulse and Gaussian monocycle are usually the waveforms used to transmit data. However when all the users in a system transmit an identical waveform, the effects of multi-user interference (MUI) are great and therefore the system bit error rate (BER) is high. In order to reduce the effects of MUI, orthogonal waveforms based pulse shape multiple access (PSMA) is proposed. In this paper, combinedwaveform--the novel orthogonal waveforms design method based on orthogonal wavelet, is presented and utilized to realize multiple access with time hopping (TH) sequence.Meyer wavelet is used as an example to illustrate how to design a set of orthogonal waveforms by this method. Simulation results show that PSMA using combined-waveform can be used to reduce MUI, decrease receiver complexity compared to other orthogonal waveform based PSMA and reach the goal of adaptive spectrum envelope at the same time.
Xuanli Wu Xuejun Sha Naitong Zhang
Communications Research Center Harbin Institute of Technology Harbin, Heilongjiang Province, China
国际会议
2006 International Conference on Communications,Circuits and Systems(第四届国际通信、电路与系统学术会议)
广西桂林
英文
1273-1277
2006-06-25（万方平台首次上网日期，不代表论文的发表时间）