Title :
Cross-Modulation Interference Reduction for Pulse-Position Modulated UWB Signals
Author_Institution :
Electr. Eng. Dept., Univ. of South Florida, Tampa, FL
Abstract :
One of the popular modulation options that is used for ultra wideband (UWB) systems is pulse position modulation (PPM). In spite of many advantages of PPM, the cross-modulation interference (CMI) caused by multipath propagation degrades the performance of the UWB receivers when PPM modulation is used. In this paper, a technique for reducing the effect of CMI for PPM UWB signals is introduced. The proposed approach improves the performance of receivers greatly and eliminates the possibility of catastrophic errors. The proposed technique introduces variable modulation index instead of conventional fixed modulation index.
Keywords :
interference suppression; pulse position modulation; radio receivers; radiofrequency interference; ultra wideband communication; catastrophic error elimination; cross-modulation interference reduction; fixed modulation index; multipath propagation; pulse-position modulated UWB receiver signal; ultra wideband system; variable modulation index; Bit error rate; Channel estimation; Degradation; Hardware; Interference; Pulse modulation; Quality of service; Receivers; Ultra wideband technology; Wireless communication;
Conference_Titel :
Vehicular Technology Conference, 2006. VTC-2006 Fall. 2006 IEEE 64th
Conference_Location :
Montreal, Que.
Print_ISBN :
1-4244-0062-7
Electronic_ISBN :
1-4244-0063-5
DOI :
10.1109/VTCF.2006.205
