Title :
Passband Simulations of Interference Impacts in the Presence of Ultra Wideband and Narrowband Systems
Author :
Wong, Simon S M ; Lau, Francis C M
Author_Institution :
Tech. Services Div., Hong Kong SAR Gov., Kowloon
Abstract :
Ultra wideband (UWB) systems are inherently designed in coexistence with other wireless systems. In this paper, we investigate the mutual interference impacts between different UWB systems and a NB system using QPSK as an example. The performance of both UWB and NB systems in additive white Gaussian noise (AWGN) channel is evaluated by passband simulations in the radio frequency domain. It is found that a direct sequence pulse amplitude modulated (DS-PAM) UWB system generally outperforms a time hopping pulse position modulated (TH-PPM) UWB system when it is functioning as either an interferer or victim. The effectiveness of spectral nulling interference mitigation technique by removing a sub-band is also investigated.
Keywords :
AWGN channels; pulse amplitude modulation; pulse position modulation; quadrature phase shift keying; ultra wideband technology; AWGN; QPSK; additive white Gaussian noise channel; direct sequence pulse amplitude modulation; interference impacts; narrowband systems; passband simulations; spectral nulling interference mitigation technique; time hopping pulse position modulation; ultra wideband systems; wireless systems; AWGN; Additive white noise; Amplitude modulation; Interference; Narrowband; Niobium; Passband; Pulse modulation; Quadrature phase shift keying; Ultra wideband technology; Ultra wideband; direct sequence pulse amplitude modulation; interference; time hopping pulse position modulation;
Conference_Titel :
Advanced Communication Technology, 2008. ICACT 2008. 10th International Conference on
Conference_Location :
Gangwon-Do
Print_ISBN :
978-89-5519-136-3
DOI :
10.1109/ICACT.2008.4493827
