Title :
A new IR-UWB pulse to mitigate coexistence issues of UWB and narrowband systems
Author :
Mir-Moghtadaei, Sayed Vahid ; Nezhad, Abolghasem Zeidaabadi ; Fotowat-Ahmady, Ali
Author_Institution :
Dept. of Electr. & Comput. Eng., Isfahan Univ. of Technol., Isfahan, Iran
Abstract :
A new Ultra Wideband (UWB) pulse shape is proposed to mitigate coexistence issues of IEEE802.11.a WLAN and Impulse Radio UWB (IR-UWB) systems. The proposed method is applicable to the reduction of any given narrowband (NB) interference into UWB systems. This pulse shape is based on frequency up-converting of first derivative of Gaussian pulse which has an adjustable null in Power Spectral Density (PSD) depending on up-converting frequency. Both analytical and simulation results with an adaptive receiver show that an UWB system with interference from a WLAN has noticeable improved performance when using the proposed pulse in comparison with using conventional modulated Gaussian pulse.
Keywords :
Gaussian processes; interference suppression; radio receivers; radiofrequency interference; ultra wideband communication; wireless LAN; Gaussian pulse; IEEE802.11.a WLAN; IR-UWB pulse; IR-UWB systems; NB interference; PSD; UWB pulse shape; adaptive receiver; coexistence issues; impulse radio UWB; narrowband interference mitigation; narrowband systems; power spectral density; ultra wideband pulse shape; up-converting frequency; Bit error rate; Equations; Interference; Mathematical model; Narrowband; Shape; Wireless LAN; Coexistence; IEEE802.11a WLAN; UWB pulse shape design; narrowband interference avoidance;
Conference_Titel :
Electrical Engineering (ICEE), 2013 21st Iranian Conference on
Conference_Location :
Mashhad
DOI :
10.1109/IranianCEE.2013.6599828
