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ICC
2008
IEEE
14 years 4 months ago
2008
IEEE
QR decomposition (QRD)-based precoded MIMO-OFDM systems with reduced feedback are proposed to convert the MIMO-OFDM channel into layered subchannels. QRD-M is further combined wit...
ICC
2008
IEEE
14 years 4 months ago
2008
IEEE
— In this paper, we present a new beamforming scheme for a downlink of multiuser multiple-input multipleoutput (MIMO) communication systems. Recently, a blockdiagonalization (BD)...
ICC
2008
IEEE
14 years 4 months ago
2008
IEEE
Abstract —Previous work demonstrated that the improvements in spectral efficiency and link reliability can be obtained in wireless relay networks employing terminals with MIMO c...
ICC
2008
IEEE
14 years 4 months ago
2008
IEEE
— In recent years, LED technology emerged as a prime candidate for the future illumination light source, due to high energy efficiency and long life time. In addition, LEDs offe...
ICCCN
2008
IEEE
14 years 4 months ago
2008
IEEE
— Centrality is a concept often used in social network analysis to study different properties of networks that are modeled as graphs. We present a new centrality metric called Lo...