摘要
该文提出一种采用循环前缀和脉冲调制的超宽带无线通信系统(UWB-CP/PM),以及相应的信号处理算法。借鉴采用循环前缀的单载波通信系统(SC-CP)的基本思想,UWB-CP/PM系统通过变换域均衡可以很好地抑制多径干扰。借助脉冲调制,UWB-CP/PM系统可以大大简化收发器件。利用脉冲重复周期大于脉冲宽度的特点,UWB-CP/PM系统不仅可以通过多支路接收和并行处理降低系统对基带处理速度的要求,还可以通过变换域信号处理有效地抑制衰落、多用户干扰和窄带干扰。仿真结果验证了上述性能。
A solution of Ultra-Wide Band（UWB） communication systems based on Cyclic Prefix and Pulse Modulations （UWB-CP/PM） and its corresponding signal processing algorithms are presented for short-range wireless networks in this paper. Borrowing the basic idea from the Single-Carrier system with Cyclic Prefix （SC-CP）, an UWB-CP/PM system is capable of elegantly combating multipath interferences by employing transform-domain equalization. Due to pulse modulations, it can significantly simplify its transceiver. By exploiting the property that the pulse repetition period is much larger than the duration of each pulse, it is able to not only ease the requirements on the speed of baseband processing through multi-branch receiving and parallel processing, but also efficiently suppress fading, narrow-band interferences and multiuser interferences by transform-domain signal processing. Simulation results verify the above-mentioned claims.
出处
《电子与信息学报》
EI
CSCD
北大核心
2005年第8期1264-1268,共5页
Journal of Electronics & Information Technology
关键词
超宽带
干扰抑制
并行处理
WPAN
无线通信
Ultra-Wide Band （UWB）, Interference suppression, Parallel processing, Wireless Personal Area Network （WPAN）, Wireless communications
