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ICC
2007
IEEE
15 years 4 months ago
A New MIMO Beamforming Technique Based on Rotation Transformations
Abstract— In this paper, we propose a new transmit beamforming technique for multiple-input-multiple-output (MIMO) systems to improve the link level performance. We present a met...
Heunchul Lee, Seokhwan Park, Inkyu Lee
81
Voted
VTC
2008
IEEE
102views Communications» more  VTC 2008»
15 years 4 months ago
A New Two-Step Precoding Based on Rotation Transformations in Closed-Loop MIMO Systems
— In this paper, we propose a two-step precoding approach for multiple-input multiple-output (MIMO) systems by dividing the precoding process into two steps: spatial multiplexing...
Heunchul Lee, Seokhwan Park, Inkyu Lee
CISS
2008
IEEE
15 years 4 months ago
Adaptive codebook for beamforming in limited feedback MIMO systems
—We propose a new scheme for limited feedback in MIMO systems. We consider transmit beamforming and receiver maximal ratio combining as a base for our work, and propose a novel b...
Kiarash Amiri, Davood Shamsi, Behnaam Aazhang, Jos...
169
Voted

Publication
364views
15 years 5 months ago
CV-SLAM: A new ceiling vision-based SLAM technique
We propose a fast and robust CV-SLAM (Ceiling Vision –based Simultaneous Localization and Mapping) technique using a single ceiling vision sensor. The proposed algorithm is suita...
Woo Yeon Jeong (Seoul National University), Kyoung...
CORR
2007
Springer
148views Education» more  CORR 2007»
14 years 10 months ago
Blind Estimation of Multiple Carrier Frequency Offsets
Multiple carrier-frequency offsets (CFO) arise in a distributed antenna system, where data are transmitted simultaneously from multiple antennas. In such systems the received sign...
Yuanning Yu, Athina P. Petropulu, H. Vincent Poor,...