Title :
Ultra wide band system based on cognitive radio
Author :
RunFang Hao ; Jumin Zhao ; HuaKui Wang
Author_Institution :
TaiYuan Univ. of Technol., Taiyuan
Abstract :
The paper presents a simple cognitive UWB system model with queuing mechanism. In accordance with this model a good spectrum was obtained by tuning transmitter parameters adaptively. It can support dynamic avoidance of narrow-band interference. While implementing a true cognitive UWB radio is still quite challenging today because of the limitations of current digital processing technologies, intelligent spectrum-sensing capabilities and dynamic waveform generation algorithms. So our next-step work is to find better pulse design methods and algorithms for acquiring a perfect cognitive UWB system.
Keywords :
cognitive radio; queueing theory; radiofrequency interference; ultra wideband communication; waveform generators; cognitive UWB radio; dynamic waveform generation algorithms; intelligent spectrum-sensing capabilities; narrow-band interference; queuing mechanism; tuning transmitter parameters; ultrawide band system; Adaptation models; Channel estimation; Estimation; Interference; Radio transmitters; Receivers; Shape;
Conference_Titel :
Communications, Circuits and Systems, 2007. ICCCAS 2007. International Conference on
Conference_Location :
Kokura
Print_ISBN :
978-1-4244-1473-4
DOI :
10.1109/ICCCAS.2007.6250711
