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Vol. 124, Issue 1, January 2011, pp.120-126



Performance Measures of Ultra-Wideband Communication System


1Mrutyunjaya PANDA, 2Sarat Kumar PATRA

1Department of Electronics and Instrumentation Engineering, GIET, Gunupur, Orissa-765022, India

Tel.: +91-6857-250172, fax: +91-6857-250232

2 Department of Electronics and Communication Engineering, National Institute of Technology, Rourkela, Orissa, India

E-mail: mrutyunjaya74@gmail.com, skpatra@nitrkl.ac.in



Received: 25 September 2010   /Accepted: 24 January 2011   /Published: 28 January 2011


Abstract: Ultra-Wideband (UWB) has the potential to become a viable and competitive wireless technology for short-range high rate Wireless personal area networks (WPANs) as well as lower-rate and low power causing low cost devices and networks. This paper discusses properties of Gaussian pulses and derivatives thereof used for UWB signalling. The power spectral density(PSD) of signals sent into channel appear as discrete components resembling spikes with amplitudes that could adversely interfere with established communication systems. In this, mathematical model for the analysis of PSD in the channel is introduced. PSD for Time Hopping UWB (TH-UWB) signals using PPM (Pulse Position Modulation) technique is derived and simulated in the MATLAB 7.0 environment. Results show that TH-UWB PPM is a potential candidate for the fourth generation broadband wireless networks. Finally, it is established that the introduction of randomness into transmitted signal has the effect of decreasing the amount of interference power.


Keywords: Wideband, Spectral shaping, PSD, PPM, TH-UWB


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