5638 search results - page 839 / 1128 » On presence |
187
click to vote
TWC
2008
15 years 6 months ago
2008
Abstract--In this paper, we propose a robust STBC transmission scheme to combat timing synchronization errors over frequency-selective multiple-access channels. We start by derivin...
186
click to vote
TWC
2008
15 years 6 months ago
2008
Abstract--Assuming imperfect channel estimation, we propose an improved detector for orthogonal frequency-division multiplexing (OFDM) systems over a frequency-selective fading cha...
187
click to vote
TWC
2008
15 years 6 months ago
2008
The goal of the sensor network localization problem is to determine positions of all sensor nodes in a network given certain pairwise noisy distance measurements and some anchor no...
193
click to vote
WICOMM
2008
15 years 6 months ago
2008
Multi-Carrier Code Division Multiple Access (MC-CDMA) is a modulation scheme that combines the advantages of OFDM and CDMA to provide robustness against frequency selectivity in w...
177
Voted
KI
2007
Springer
15 years 6 months ago
2007
Springer
Detecting unknown worms is a challenging task. Extant solutions, such as anti-virus tools, rely mainly on prior explicit knowledge of specific worm signatures. As a result, after t...