Sciweavers

PIMRC
2010
IEEE
13 years 10 months ago
Asymptotic analysis of distributed multi-cell beamforming
We consider the problem of multi-cell downlink beamforming with N cells and K terminals per cell. Cooperation among base stations (BSs) has been found to increase the system throug...
Subhash Lakshminaryana, Jakob Hoydis, Mérou...
GLOBECOM
2010
IEEE
13 years 10 months ago
Investigation into the Doppler Component of the IEEE 802.11n Channel Model
-- Simulations show that the Doppler component of the IEEE 802.11n channel model results in a dramatic decrease in transmit beamforming gain within only 20 ms delay, even though th...
Eldad Perahia, Anmol Sheth, Thomas Kenney, Robert ...
DSD
2010
IEEE
141views Hardware» more  DSD 2010»
13 years 10 months ago
Adaptive Beamforming Using the Reconfigurable MONTIUM TP
Until a decade ago, the concept of phased array beamforming was mainly implemented with mechanical or analog solutions. Today, digital hardware has become powerful enough to perfor...
Marcel D. van de Burgwal, Kenneth C. Rovers, Koen ...
TASLP
2002
142views more  TASLP 2002»
14 years 2 days ago
Geometric source separation: merging convolutive source separation with geometric beamforming
Convolutive blind source separation and adaptive beamforming have a similar goal--extracting a source of interest (or multiple sources) while reducing undesired interferences. A be...
Lucas C. Parra, Christopher V. Alvino
PC
2000
120views Management» more  PC 2000»
14 years 6 days ago
Real-time sonar beamforming on high-performance distributed computers
Rapid advancements in acoustical beamforming techniques for array signal processing are producing algorithms with increased levels of computational complexity. Concomitantly, auto...
Alan D. George, Jeff Markwell, Ryan Fogarty
TWC
2008
117views more  TWC 2008»
14 years 9 days ago
On the design, selection algorithm and performance analysis of limited feedback transmit beamforming
Multiple-input multiple-output (MIMO) systems achieve significant diversity and array gains by using transmit beamforming. When complete channel state information (CSI) is not avai...
Alireza Ghaderipoor, Chintha Tellambura
TWC
2008
150views more  TWC 2008»
14 years 9 days ago
Combining Beamforming and Space-Time Coding Using Quantized Feedback
We combine space-time coding and transmit beamforming over multiple-antenna quasi-static fading channels using resolution-constrained channel state information at the transmitter ...
Siavash Ekbatani, Hamid Jafarkhani
TWC
2008
129views more  TWC 2008»
14 years 9 days ago
Adaptive Minimum Symbol Error Rate Beamforming Assisted Detection for Quadrature Amplitude Modulation
We consider beamforming assisted detection for multiple antenna aided multiuser systems that employ the bandwidth efficient quadrature amplitude modulation scheme. A minimum symbol...
Sheng Chen, Andy Livingstone, H.-Q. Du, Lajos Hanz...
TSP
2008
100views more  TSP 2008»
14 years 10 days ago
Time-Slotted Round-Trip Carrier Synchronization for Distributed Beamforming
Transmit beamforming is an energy-efficient wireless communication technique that allows a transmitter with two or more antennas to focus its bandpass signal in an intended directi...
D. Richard Brown III, H. Vincent Poor
TSP
2008
81views more  TSP 2008»
14 years 10 days ago
Subspace Beamforming for Near-Capacity MIMO Performance
A subspace beamforming method is presented that decomposes a MIMO channel into multiple pairs of subchannels. The pairing is done based on singular values such that similar channel...
Sirikiat Lek Ariyavisitakul, Jun Zheng, E. Ojard, ...