| 基于自适应MMSE接收的直扩超宽带室内传输误码性能 |
| |
| 引用本文： | 刘家彬,冯兴乐,梁中华.基于自适应MMSE接收的直扩超宽带室内传输误码性能[J].北京石油化工学院学报,2009,17(3):28-33. |
| |
| 作者姓名： | 刘家彬 冯兴乐 梁中华 |
| |
| 作者单位： | 1. 北京石油化工学院通信工程系,北京,102617
2. 西安长安大学信息工程学院,西安,710064 |
| |
| 摘 要： | 在超宽带（Ultra—Wideband或Ultra—Wide bandwidth，简称UWB）室内密集多径的传输环境下，传统的Rake接收机在分集接收时需要进行信道参数估计。此外，为了收集多径能量，其相关接收器组的抽头数也要求较高，因而增加了接收机结构的复杂度，不利于在实际中应用。基于自适应信号检测算法在DSCDMA系统中具有算法简单以及较强的抗干扰性能等优点，提出了以自适应MMSE（Minimum Mean Square Error）接收机为核心的直扩超宽带（DS—UWB）室内高速无线链路的实现方案，并从理论上推导出了该方案在IEEE802．15．3a信道模型中的误码性能。仿真结果表明，在基本不损失误码性能的前提下，方案与采用传统Rake接收机的方案相比，不需要信道估计，从而具有结构简单、易于实现等优点。
|
| 关 键 词： | 超宽带（UWB） 无线通信 密集多径 自适应MMSE |
Bit Error Rate Performance of DS-UWB Indoor Transmission Scheme Using Adaptive MMSE Receiver |
| |
| Liu Jiabing,Feng Xingle,Liang Zhonghua.Bit Error Rate Performance of DS-UWB Indoor Transmission Scheme Using Adaptive MMSE Receiver[J].Journal of Beijing Institute of Petro-Chemical Technology,2009,17(3):28-33. |
| |
| Authors: | Liu Jiabing Feng Xingle Liang Zhonghua |
| |
| Affiliation: | Liu Jiabing1 Feng Xingle2 Liang Zhonghua2(1.Department of Communications Engineering,Beijing Institute of Petro-chemical Technology,Beijing 102617,China,2.School of Information Engineering,Chang\'an University,Xi\'an 710064,China) |
| |
| Abstract: | In ultra-wideband(UWB) indoor dense multipath environments,traditional coherent Rake receiver requires channel estimation.Moreover,in order to collect enough signal energy from dense multipath components,the number of Rake fingers must be large enough.Consequently,the receiver structure is too complex to be implemented in practice.However,we know that adaptive signal detection performs well in DS-CDMA systems due to its simple algorithm and robustness of anti-interference.In this paper,we propose an indoor ... |
| |
| Keywords: | ultra-wideband(UWB) wireless communications dense multipath adaptive MMSE |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
