Space-time characteristics of frequency-flat Rayleigh fading channels and applications on MIMO systems
17 November 2002
We discuss the interrelationship between the spatial and the temporal correlation of the frequency-flat Rayleigh fading channels, and propose a joint design of the mobile station (MS) antenna separation (AS), base station (BS) antenna separation, and the channel interleaving depth (ID) for achieving the spatial, temporal, and space-time channel independence. The proposed design is based on a model generalized from the Jakes/Clarke (1968, 1974) ring-of-scatterer fading model. A space-time channel correlation function of two BS and two MS antennas is derived and examined to produce the AS and ID design rule. Analytical binary phase shift keying (BPSK) bit error probability with perfect channel state information is used to compare the performance.