3595 search results - page 159 / 719 » The user experience: designs and adaptations |
ICC
2008
IEEE
14 years 2 months ago
2008
IEEE
Abstract—We propose a closed–loop scheme that combines opportunistic beamforming (OBF) and closed–loop (CL) transmit–diversity (TD) techniques. This quantized OBF scheme is...
WWW
2011
ACM
13 years 3 months ago
2011
ACM
As information technology supports more aspects of modern life, digital access has become an important tool for developing regions to lift themselves from poverty. Though broadban...
ICC
2007
IEEE
14 years 2 months ago
2007
IEEE
— This paper proposes an adaptive radio resource allocation (ARRA) algorithm for downlink OFDMA/SDMA systems with multimedia traffic. Considering multiple service classes and di...
ICASSP
2010
IEEE
13 years 8 months ago
2010
IEEE
Vast segments of the frequency spectrum are licensed to specific users for particular applications. These legacy users, however, often under-utilize their designated spectrum seg...
KBSE
1999
IEEE
14 years 16 days ago
1999
IEEE
There is an increasingly large demand for software systems which are able to operate effectively in dynamic environments. In such environments, automated software engineering is e...