TY - JOUR 
A1 - Valenzuela Valdés, Juan Francisco
AU - García Fernández, Miguel Ángel
AU - Martínez González, Antonio Manuel
AU - Sánchez Hernández, David Agapito
T1 - The influence of efficiency on receive diversity and MIMO capacity for rayleigh-fading channels
Y1 - 2008
SN - 0018-926X
UR - http://hdl.handle.net/10317/833
AB - A previously published guideline for MIMO antenna
arrays is refuted. The influence of radiation efficiency on diversity
gain and MIMO capacity of wireless communications systems is
investigated through simulations and measurements using a reverberation
chamber. Integrated antennas on a portable device have
efficiencies low enough to disallow typical inter-element correlation
assumptions. Both diversity gain and MIMO capacity depend
on the number of antennas, SNR and efficiency in a complex way.
When the efficiency of antennas is considered, certain system capacity
losses are predicted and measured. These losses may be recovered
through using more receive elements than commonly recommended
or through the addition of a smaller number of more
efficient antennas.
KW - Teoría de la Señal y las Comunicaciones
KW - Diversidad de ganancia
KW - Capacidad del canal
KW - Multiple entrada y multiple salida (MIMO)
KW - Eficiencia de radiación
KW - MIMO
KW - Diversity gain
KW - Channel capacity
KW - Radiation efficiency
LA - eng
PB - IEEE Antennas and Propagation Society
ER -