Sciweavers

122 search results - page 13 / 25
» Information Rates for Multiantenna Systems With Unknown Fadi...
Sort
View
IWCMC
2009
ACM
14 years 2 months ago
Performance analysis and adaptive power control for block coded collaborative networks
We derive theoretical bit and frame error rate expressions for decode-and-forward (DF) collaborative networks containing M users, employing a variety of block codes over a Rayleig...
W. Guo, Ioannis Chatzigeorgiou, Ian J. Wassell, Ro...
VTC
2006
IEEE
103views Communications» more  VTC 2006»
14 years 1 months ago
On the Golden Code Performance for MIMO-HSDPA System
Abstract— In this paper, we propose a new MIMO-HSDPA transmission scheme with two transmit and two receive antennas, using an optimal Space-Time block code: the Golden code [1]. ...
Rym Ouertani, Ahmed Saadani, Ghaya Rekaya-Ben Othm...
PIMRC
2008
IEEE
14 years 2 months ago
Carrier frequency dependent throughput analysis for impaired OFDM links under user mobility
—In this paper we present an analytical approach to evaluate the M-QAM bit error rate and carrier frequency dependent throughput of OFDM systems subject to various receiver impai...
Marco Krondorf, Gerhard Fettweis
KDD
2006
ACM
172views Data Mining» more  KDD 2006»
14 years 8 months ago
Attack detection in time series for recommender systems
Recent research has identified significant vulnerabilities in recommender systems. Shilling attacks, in which attackers introduce biased ratings in order to influence future recom...
Sheng Zhang, Amit Chakrabarti, James Ford, Fillia ...
ICC
2007
IEEE
14 years 1 months ago
Optimizing Linear Dispersion Codes for Wideband MIMO Systems
Abstract— We consider the problem of designing space-timefrequency linear dispersion (LD) codes in wideband multipleinput multiple-output (MIMO) antenna systems employing orthogo...
Luca Venturino, Narayan Prasad, Xiaodong Wang, Moh...