Title :
An adaptive UWB pulse shaping algorithm for narrowband interference suppression
Author_Institution :
Sch. of Electron. Eng., Xi´´an Univ. of Posts & Telecommun., Xi´´an, China
Abstract :
Adaptive pulses in ultra wideband (UWB) wireless communication system are characterized by forming notches at some frequencies as a way to suppress its interference to licensed narrowband users. This paper proposes a novel method in designing adaptive pulses by using the Cognitive Radio technology and Parks-McClellan algorithm. One case of arbitrary narrowband interference is studied. The simulation results show that the power spectrum density of the proposed pulses meets the constraints of the FCC indoor mask. The comparison of bit error rate performance is presented by using the adaptive pulses and the fifth-order derivative Gaussian pulse to the time hopping UWB system in the additive white Gaussian noise channel. With the low computational complexity, the proposed pulses have lower bit error rate than the fifth-order derivative Gaussian pulse and hence make the whole UWB system reduce narrowband interference.
Keywords :
interference suppression; pulse shaping; ultra wideband communication; Parks-McClellan algorithm; adaptive UWB pulse shaping algorithm; adaptive pulse; additive white Gaussian noise channel; bit error rate performance; cognitive radio technology; computational complexity; fifth-order derivative Gaussian pulse; narrowband interference suppression; power spectrum density; time hopping UWB system; ultra wideband wireless communication; Adaptive systems; Algorithm design and analysis; Bit error rate; Design methodology; FCC; Interference; Narrowband; Parks-McClellan algorithm; Ultra Wideband; narrowband interference; pulse shape design;
Conference_Titel :
Image and Signal Processing (CISP), 2010 3rd International Congress on
Conference_Location :
Yantai
Print_ISBN :
978-1-4244-6513-2
DOI :
10.1109/CISP.2010.5647774