Wireless Communication Using Dual Antenna Arrays
Wireless Communication Using Dual Antenna Arrays
On Limits of Wireless Communications in a Fading Environment when UsingMultiple Antennas
Wireless Personal Communications: An International Journal
Space-Time Codes and MIMO Systems
Space-Time Codes and MIMO Systems
Characterization of the Indoor/Outdoor to Indoor MIMO Radio Channel at 2.140 GHz
Wireless Personal Communications: An International Journal
On the Performance of Link Adaptation Techniques in MIMO Systems
Wireless Personal Communications: An International Journal
Improving MIMO capacity with directive antennas for outdoor-indoor scenarios
IEEE Transactions on Wireless Communications
Turbo-BLAST for wireless communications: theory and experiments
IEEE Transactions on Signal Processing
Reduced-complexity transmit/receive-diversity systems
IEEE Transactions on Signal Processing
Transmitter optimization and optimality of beamforming for multiple antenna systems
IEEE Transactions on Wireless Communications
On the performance of random vector quantization limited feedback beamforming in a MISO system
IEEE Transactions on Wireless Communications
From theory to practice: an overview of MIMO space-time coded wireless systems
IEEE Journal on Selected Areas in Communications
Capacity limits of MIMO channels
IEEE Journal on Selected Areas in Communications
Beamforming in MISO systems: empirical results and EVM-based analysis
IEEE Transactions on Wireless Communications
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We present an empirically based comparative study of spectral efficiency for a variety of transmission systems applicable to a fixed or repositionable wireless environment, in the context of Wi-Fi, WiMAX or MuniNet systems. A narrowband 4 × 4 Multiple Input Multiple Output (MIMO) channel sounder was constructed and a series of outdoor to indoor measurements were carried out, in multiple locations and with different array configurations. The channel measurements were used to compute the efficiency of different systems that could be deployed in such scenarios, ranging from a full MIMO system with perfect Channel State Information (CSI) at both ends to simple diversity schemes such as classical beamforming. We show comparisons of efficiency for the different transmit/receive configurations operating in a representative variety of locations. Our results indicate that for low values of signal to noise ratio (SNR), in the range of 5dB, such as found in strong interference scenarios, simple schemes can achieve median spectral efficiencies as high as 80% of that of MIMO with complete CSI.