Sciweavers

Share
warning: Creating default object from empty value in /var/www/modules/taxonomy/taxonomy.module on line 1416.
ICASSP
2011
IEEE
10 years 5 months ago
Source localization using time difference of arrival within a sparse representation framework
The problem addressed is source localization via time-differenceof-arrival estimation in a multipath channel. Solving this localization problem typically implies cross-correlating...
Ciprian R. Comsa, Alexander M. Haimovich, Stuart C...
TIT
2010
174views Education» more  TIT 2010»
10 years 8 months ago
Toeplitz Compressed Sensing Matrices With Applications to Sparse Channel Estimation
Compressed sensing (CS) has recently emerged as a powerful signal acquisition paradigm. In essence, CS enables the recovery of high-dimensional sparse signals from relatively few ...
Jarvis Haupt, Waheed Uz Zaman Bajwa, Gil M. Raz, R...
CORR
2008
Springer
97views Education» more  CORR 2008»
11 years 1 months ago
Spreading Signals in the Wideband Limit
Abstract-- Wideband communications are asymptotically impossible with signals that are spread over a very wide band and are transmitted over a multipath channel unknown ahead of ti...
Elchanan Zwecher, Dana Porrat
ICC
2007
IEEE
11 years 5 months ago
CS-CDMA/CP with M-ZCZ Codes Over a Multipath Fading Channel with Excess Spreads
Convolutional spreading CDMA with cyclic prefix (CS-CDMA/CP) enables multiuser interference-free (MUI-free) transmission over multipath channels with the use of zero correlation zo...
Nalin S. Weerasinghe, Takeshi Hashimoto
GLOBECOM
2008
IEEE
11 years 8 months ago
Performance of Constrained Blind Adaptive DS-CDMA UWB Multiuser Detector in Multipath Channel with Narrowband Interference
—In this paper we derive and propose constrained blind DS-CDMA UWB multiuser detection algorithm to suppress the multi access interference (MAI) in multipath channels, and studie...
Gangadhar S. Biradar, Shabbir N. Merchant, Uday B....
GLOBECOM
2009
IEEE
11 years 8 months ago
How Much Training Is Needed for Iterative Multiuser Detection and Decoding?
Abstract—This paper studies large randomly spread directsequence code-division multiple-access system operating over a block fading multipath channel. Channel knowledge is obtain...
Mikko Vehkaperä, Keigo Takeuchi, Ralf R. M&uu...
books