Design of Pulse Waveform for Waveform Division Multiple Access UWB Wireless Communication System

被引：0
|
作者：
Yin, Zhendong [1 ]
Wang, Zhirui [1 ]
Liu, Xiaohui [1 ]
Wu, Zhilu [1 ]
机构：
[1] Harbin Inst Technol, Sch Elect & Informat Engn, Harbin 150001, Peoples R China
来源：
SCIENTIFIC WORLD JOURNAL | 2014年
基金：
中国博士后科学基金; 中国国家自然科学基金;
关键词：
MULTIUSER DETECTION; ALGORITHM; DS; SPACE; TH;
D O I：
10.1155/2014/171875
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
A new multiple access scheme, Waveform Division Multiple Access (WDMA) based on the orthogonal wavelet function, is presented. After studying the correlation properties of different categories of single wavelet functions, the one with the best correlation property will be chosen as the foundation for combined waveform. In the communication system, each user is assigned to different combined orthogonal waveform. Demonstrated by simulation, combined waveform is more suitable than single wavelet function to be a communication medium in WDMA system. Due to the excellent orthogonality, the bit error rate (BER) of multiuser with combined waveforms is so close to that of single user in a synchronous system. That is to say, the multiple access interference (MAI) is almost eliminated. Furthermore, even in an asynchronous system without multiuser detection after matched filters, the result is still pretty ideal and satisfactory by using the third combination mode that will be mentioned in the study.
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收藏
页数：11
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