Title :
On the Power Spectrum Density of UWB Signals in IEEE 802.15.4a
Author :
Yang, Jie ; Dong, Pingxue
Author_Institution :
Coll. of Electron. Eng., Heilongjiang Univ., Harbin, China
Abstract :
The impulse ultra-wideband (UWB) channels covering the frequency range from 2 to 10 GHz, it covers indoor residential, door office, outdoor, industrial, and open outdoor environments. UWB communications systems share the spectrum with other systems in an unlicensed manner. This has caused a strict spectral constraint. In order to discuss power spectrum distribution, it analyzed the channel modeling subgroup of IEEE 802.15.4a from three aspects: the average pathloss, the power delay profile and the small-scale fading statistics. Theoretical analysis and simulation of the 2-10GHz power spectrum distribution of UWB system is described in detail. The power spectrum influence of 8 channels upon DS-PAM UWB system is analyzed. Simulation results show that the performance of UWB system isn´t deteriorated by multi-path channel, and impulse UWB has better performance in anti-multipath interference.
Keywords :
Zigbee; fading channels; multipath channels; radiofrequency interference; statistical analysis; ultra wideband communication; DS-PAM UWB system; IEEE 802.15.4a; UWB signals; antimultipath interference; door office environments; frequency 2 GHz to 10 GHz; impulse UWB channels; impulse ultrawideband channels; indoor residential environments; industrial environments; multipath channel; outdoor environments; power delay profile; power spectrum density; power spectrum distribution; small-scale fading statistics; Analytical models; Channel models; Delay; Educational institutions; Fading; IEEE 802.15 Standards; Wireless communication; IEEE802.15.4a channel modeling; UWB; multipath interference; pathloss; power spectrum;
Conference_Titel :
Intelligent Information Hiding and Multimedia Signal Processing (IIH-MSP), 2012 Eighth International Conference on
Conference_Location :
Piraeus
Print_ISBN :
978-1-4673-1741-2
DOI :
10.1109/IIH-MSP.2012.118
