Title :
A differential detector for an ultra-wideband communications system
Author :
Ho, Minnie ; Somayazulu, V. Srinivasa ; Foerster, Jefsey ; Roy, Sumit
Author_Institution :
Intel Labs., Hillsboro, OR, USA
fDate :
6/24/1905 12:00:00 AM
Abstract :
Systems using ultra-wideband (UWB) technology have been shown to achieve very high data rates (100 Mbps and above) for short-range, indoor applications. UWB signals exhibit a number of performance advantages in terms of multipath resolution and fading reduction. However, UWB systems can also exhibit significant implementation complexity in timing, synchronization, and signal correlation. This paper presents a differential detector that "rakes" in some of the multipath energy, while relaxing some of the stringent implementation requirements. We analyze the performance and the implementation of the differential detector, and compare it to a "RAKE" receiver with a correlator detector in the presence of AWGN and multipath.
Keywords :
AWGN; broadband networks; differential detection; differential phase shift keying; fading channels; indoor radio; multipath channels; radio networks; radio receivers; AWGN; DPSK receiver; RAKE receiver; UWB signals; correlator detector; differential detector; fading reduction; high data rates; implementation complexity; multipath energy; multipath resolution; performance analysis; short-range indoor applications; signal correlation; synchronization; timing; ultra-wideband communications system; AWGN; Correlators; Detectors; Energy resolution; Fading; Multipath channels; Performance analysis; Signal resolution; Timing; Ultra wideband technology;
Conference_Titel :
Vehicular Technology Conference, 2002. VTC Spring 2002. IEEE 55th
Print_ISBN :
0-7803-7484-3
DOI :
10.1109/VTC.2002.1002952
