北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2005, Vol. 28 ›› Issue (4): 62-65.doi: 10.13190/jbupt.200504.62.079

• 研究报告 • 上一篇    下一篇

一种改进的数字UltraWide Bandwidth RadioonFiber系统模型的性能分析

齐永兴,刘元安,高泽华   

  1. 北京邮电大学 电信工程学院, 北京 100876
  • 出版日期:2005-08-28 发布日期:2005-08-28

The Performance Analysis of an Improved UltraWide Bandwidth Digital RadioonFiber System Model

QI Yongxing,LIU Yuanan,GAO Zehua   

  1. School of Telecommunication Engineering, Beijing University of Posts a nd Telecommunications, Beijing 100876, China
  • Online:2005-08-28 Published:2005-08-28

摘要:

为了充分利用超宽带的特点,对数字光载无线系统进行了改进,并给出了系统模型. 理论分析和仿真结果表明, 跳时序列构造不同,系统性能(信噪比)也不同;相同构造下,激活用户数不同引起的时隙平均干扰也不同. 这种改进使得数字光载无线系统降低了复杂度,提高了光纤利用率,同时也改善了系统的性能.

关键词: 光载无线, 超宽带, 脉冲位置调制

Abstract:

To utilize the properties of ultrawide bandwidth, the structure of ultrawide bandwidth digital radio on fiber system was modified, and the system model was illustrated. Simulations and theoretical analysis show that different time hopping sequences (THS) will cause different system performance (signal to noise ratio), and different active number of users will bring about different average interference of time slot with the same THS. And also show that the modification will decrease the system complexity, and meanwhile, will increase the efficiency of fiber, and improve the system performance as well.

Key words: radioonfiber, ultrawide bandwidth, pulse position modulation

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