Title :
Comparison of modulation schemes and rake receiver structures for UWB systems on an IEEE 802.15.3 indoor channel
Author :
Hu, Bo ; Beaulieu, Norman C.
Author_Institution :
Dept. of Electr. & Comput. Eng., Alberta Univ., Edmonton, Alta.
Abstract :
The all-Rake and selective-Rake receiver structures are examined for different transmission scenarios, including multiple access interference and intersymbol interference environments. The results show that the all-Rake receiver does not necessarily offer the best performance when operating in intersymbol interference environments. Some candidate modulation schemes proposed for ultra-wideband communications are assessed and compared using a measurements-based fading model. Although some analytical and semi-analytical methods using the Gaussian approximation predict the same bit error rate estimates for several modulation schemes, our results show that the actual performances of these modulation schemes are different
Keywords :
Gaussian processes; error statistics; fading channels; indoor radio; intersymbol interference; personal area networks; radio receivers; ultra wideband communication; wireless channels; Gaussian approximation; IEEE802.15.3 indoor channel; UWB systems; bit error rate estimates; intersymbol interference environments; measurements-based fading model; modulation schemes; multiple access interference; selective-Rake receiver structures; ultrawideband communications; Binary phase shift keying; Bit error rate; Fading; Gaussian approximation; Intersymbol interference; Multipath channels; Multiple access interference; Performance analysis; Pulse modulation; RAKE receivers;
Conference_Titel :
Global Telecommunications Conference, 2005. GLOBECOM '05. IEEE
Conference_Location :
St. Louis, MO
Print_ISBN :
0-7803-9414-3
DOI :
10.1109/GLOCOM.2005.1578422