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TWC
2010
14 years 11 months ago
Adaptive Modulation for MIMO Systems with Channel Prediction Errors
The performance of multiple-input multiple-output (MIMO) systems using spatial multiplexing is analyzed under channel prediction errors. We derive exact closed-form expressions for...
Unai Fernández-Plazaola, Eduardo Martos-Nay...
PERVASIVE
2010
Springer
15 years 11 months ago
On the Use of Brain Decoded Signals for Online User Adaptive Gesture Recognition Systems
Activity and context recognition in pervasive and wearable computing ought to continuously adapt to changes typical of open-ended scenarios, such as changing users, sensor characte...
Kilian Förster, Andrea Biasiucci, Ricardo Cha...
ICC
2007
IEEE
116views Communications» more  ICC 2007»
15 years 11 months ago
Joint Adaptive FDMA/SDMA in Chunk-Based OFDM Systems
—OFDM-FDMA/SDMA is currently considered as the leading transmission strategy for the downlink of beyond 3G mobile radio systems. When channel state information is available at th...
Elena Costa, Ying Zhang, Alberto Totaro
VTC
2006
IEEE
149views Communications» more  VTC 2006»
15 years 10 months ago
Adaptive Mode Selection for Multiuser MIMO Downlink Systems
This paper proposes a block diagonalization (BD) method, which nullifies the multiuser interference and, hence, increases the sum capacity in a multiuser multiple-input multipleout...
Yong-Up Jang, Hyuck M. Kwon, Yong Hoon Lee
ICWE
2003
Springer
15 years 9 months ago
Adaptive Interaction Multi-agent Systems in E-learning/E-teaching on the Web
In this paper we propose to include two up-to-date separate concepts, namely social computing and usability metrics, in intelligent interaction agents to enhance a user-centred, ad...
Antonio Fernández-Caballero, Víctor ...