DocumentCode :
3248255
Title :
Analysis of ultra wideband signal interference to DSSS receiver
Author :
Yue, Guangrong ; Ge, Lijia ; Li, Shaoqian
Author_Institution :
Nat. Key Lab. of Commun., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
fYear :
2003
fDate :
15-18 June 2003
Firstpage :
229
Lastpage :
233
Abstract :
The ultra wideband (UWB) interference to direct sequence spread spectrum (DSSS) receiver is analyzed. Two popular UWB modulation schemes, the time hopping pulse position modulation (TH-PPM) and time hopping pulse amplitude modulation (TH-PAM), are considered. The pulse repetition rate (PRR) of UWB signal and the frequency band of the DSSS play the primary roles in the BER performance of the DSSS receiver in the presence of UWB interference. The UWB signal parameters raising the interference to the DSSS receiver are discussed. The characteristics of an aggregation of multiple UWB signals are somehow different from that of a single UWB device, especially for the TH-PPM scheme, where discrete spectral lines maybe exist in the band of the DSSS receiver. The system parameters of TH-PPM such as the modulation index and maximum shift incurred by the time hopping code determine the amplitude of the discrete spectral lines. In the multiuser case of TH-PPM, sometimes one discrete spectral line leads to serious BER performance. It is observed from both theoretical analysis and computer simulations that the interference with the DSSS receiver from the UWB device is very little in common cases.
Keywords :
error statistics; interference suppression; pulse amplitude modulation; pulse position modulation; radio receivers; spread spectrum communication; BER performance; DSSS receiver; TH-PAM; TH-PPM; UWB interference; direct sequence spread spectrum; discrete spectral lines; maximum shift; modulation index; multiple signal aggregation; pulse repetition rate; time hopping pulse amplitude modulation; time hopping pulse position modulation; ultra wideband signal interference; Amplitude modulation; Bit error rate; Interference; Performance analysis; Pulse modulation; Receivers; Signal analysis; Signal to noise ratio; Spread spectrum communication; Ultra wideband technology;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Signal Processing Advances in Wireless Communications, 2003. SPAWC 2003. 4th IEEE Workshop on
Print_ISBN :
0-7803-7858-X
Type :
conf
DOI :
10.1109/SPAWC.2003.1318956
Filename :
1318956
Link To Document :
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