Diversity properties of multiantenna small handheld terminals

Authors:
Wim A. Th. Kotterman;Gert F. Pedersen;Kim Olesen
Affiliations:
Department of Communication Technology (KOM), Aalborg University, Aalborg, Denmark;Department of Communication Technology (KOM), Aalborg University, Aalborg Ø, Denmark;Department of Communication Technology (KOM), Aalborg University, Aalborg Ø, Denmark
Venue:
EURASIP Journal on Applied Signal Processing
Year:
2004

Citing 2
Cited 1

Microwave Mobile Communications

Microwave Mobile Communications
Channel parameter estimation in mobile radio environments using the SAGE algorithm

IEEE Journal on Selected Areas in Communications

On the Correlation and Ergodic Properties of the Squared Envelope of SOC Rayleigh Fading Channel Simulators

Wireless Personal Communications: An International Journal

Quantified Score

Hi-index	0.01

Visualization

Abstract

Experimental data are presented on the viability of multiple antennas on small mobile handsets, based on extensive measurement campaigns at 2.14 GHz with multiple base stations, indoors, from outdoor to indoor, and outdoors. The results show medium to low correlation values between antenna branch signals despite small antenna separations down to 0.16λ. Amplitude distributions are mainly Rayleigh-like, but for early and late components steeper than Rayleigh. Test users handling the measurement handset caused larger delay spread, increased the variability of the channel, and induced rather large mean branch power differences of up to 10dB. Positioning of multiple antennas on small terminals should therefore be done with care. The indoor channels were essentially flat fading within 7 MHz bandwidth (-6 dB); the outdoor-to-indoor and outdoor channels, measured with 10 MHz bandwidth, were not. For outdoor-to-indoor and outdoor channels, we found that different taps in the same impulse response are uncorrelated.