The capacity of wireless communication architectures equipped with multiple transmit and receive antennas and impaired by both noise and cochannel interference is studied. We find a closed-form solution for the capacity in the limit of a large number of antennas. This asymptotic solution, which is a sole function of the relative number of transmit and receive antennas and the signal-to-noise and signal-to-interference ratios (SNR and SIR), is then particularized to a number of eases of interest. By verifying that antenna diversity can substitute for time and/or frequency diversity at providing ergodicity, we show that these asymptotic solutions approximate the ergodic capacity very closely even when the number of antennas is very small.
Capacity of multiple-transmit multiple-receive antenna architectures / Lozano, A.; Tulino, A. M.. - In: IEEE TRANSACTIONS ON INFORMATION THEORY. - ISSN 0018-9448. - 48:12(2002), pp. 3117-3128. [10.1109/TIT.2002.805084]
Capacity of multiple-transmit multiple-receive antenna architectures
Tulino A. M.
2002
Abstract
The capacity of wireless communication architectures equipped with multiple transmit and receive antennas and impaired by both noise and cochannel interference is studied. We find a closed-form solution for the capacity in the limit of a large number of antennas. This asymptotic solution, which is a sole function of the relative number of transmit and receive antennas and the signal-to-noise and signal-to-interference ratios (SNR and SIR), is then particularized to a number of eases of interest. By verifying that antenna diversity can substitute for time and/or frequency diversity at providing ergodicity, we show that these asymptotic solutions approximate the ergodic capacity very closely even when the number of antennas is very small.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
