DocumentCode :
2166627
Title :
Accurate BER of time-hopping and direct-sequence UWB systems in multi-user interference
Author :
Hu, Bo ; Beaulieu, Norman C.
Author_Institution :
Dept. of Electr. & Comput. Eng., Alberta Univ., Edmonton, Alta., Canada
fYear :
2005
fDate :
24-26 Aug. 2005
Firstpage :
25
Lastpage :
28
Abstract :
An exact analysis is derived for precisely calculating the bit error probability of time-hopping and direct-sequence ultra-wideband systems with multi-user interference. This analysis differs from past work in that it is assumed that multiple pulses in a frame from an interfering user can cause interference to the desired user. The Gaussian approximation is shown to be inaccurate for predicting the bit error rate for medium and large signal-to-noise ratio values. The performances of time-hopping and direct-sequence modulation schemes are accurately compared for different numbers of users and frame lengths.
Keywords :
Gaussian processes; error statistics; modulation; radiofrequency interference; spread spectrum communication; ultra wideband communication; BER; Gaussian approximation; bit error probability; bit error rate; direct-sequence UWB systems; direct-sequence modulation schemes; exact analysis; multiuser interference; signal-to-noise ratio; time-hopping UWB systems; time-hopping modulation schemes; ultra-wideband systems; Bit error rate;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Communications, Computers and signal Processing, 2005. PACRIM. 2005 IEEE Pacific Rim Conference on
Print_ISBN :
0-7803-9195-0
Type :
conf
DOI :
10.1109/PACRIM.2005.1517216
Filename :
1517216
Link To Document :
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