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Considering the potential interference of ultrawideband (UWB) on OFDM-based wireless communication systems, this paper studies coexistence issue between UWB with both impulse radio (IR) and multiband (MB) modulation and IEEE802.11n, WiMAX, and LTE downlink systems, using physical layer modeling strategy. According to the physical characteristics of UWB and the victim systems, entire physical layer...
The coexistence issues between UWB and WiMAX systems at 3.5GHz frequency band has been recently attached much attention. For investigating the potential interference of ultra-wideband (UWB) on a WiMAX system, an analysis method based on the physical layer modeling was presented. The physical layer models of impulse radio (IR) UWB, multi-band orthogonal frequency division multiplex (MB-OFDM) UWB and...
Considering the potential interference of ultra-wideband (UWB) on narrowband communication systems, this paper studies coexistence issue between UWB with both impulse radio (IR) and multiband (MB) modulation and IEEE802.11n system, using physical layer modelling strategy. According to the physical characteristics of UWB and the victim system, entire physical layer models are set up. Based on the requirements...
A novel method to analyze UWB signal is presented in this paper, namely amplitude probability frequency distribution (APFD). Unlike FT and APD methods that only depict some characteristics of UWB signal in a certain domain, the APFD method proposed in this paper can portray the characteristics of UWB signal from three dimensions space. Neither like STFT method that only observes how the PSD varies...
Considering the spectrum characteristics of the UWB carrier envelope modulation (CEM) scheme, a novel orthogonal comb frequency-band correlation demodulation method is presented in this paper. In order to satisfy the condition of orthogonal comb frequency spectrum, the carrier frequency selection criteria is also derived. A possible implementation of the novel demodulation receiver by using surface...
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