MIMO capacity of an OFDM-based system under Ricean fading

Statistical characterization and capacity of shallow water acoustic channels

“…Because of the block-circulant property of the space-time channel matrix H, a Rician frequency-selective MIMO channel can be represented as a set of M parallel independent MIMO channels [9]. One can alernatively think of an OFDM system with M sub-carriers, where each sub-band is affected by flatfading.…”

“…This is an important observation for systems that do not exhibit Rayleigh fading, such as mobile-terrestrial radio systems where a line-of-sight component results in Rician fading, or, as we shall see, acoustic channels. Ergodic capacity results can also be extended to frequency-selective fading channels [9]- [11].…”

On the Mutual Information Distribution of OFDM-Based Spatial Multiplexing: Exact Variance and Outage Approximation

“…where' for i = r; j 6 = s j d j 2(i0j) j;i ( (z); d ); for i 6 = r; j = s (26) and for the case (i = r; j = s) (27) ' ( where i 0 = max(i; j) and j 0 = min(i; j). Also, i;j( 1 ) is defined in (17) The following two corollaries present very simple high SNR variance expressions for the special case of SIMO/MISO and SISO systems, respectively.…”

“…We start by following the same procedure as used in (50)- (60) To complete the proof, we must express the infinite summation in (97) in the simplified finite-sum form of (27 …”

Accurate Approximations for the Capacity Distribution of OFDM-Based Spatial Multiplexing

“…For these channels, there are relatively few analytic MIMO capacity results. The ergodic capacity was considered in [10,13,14] and [15,16], assuming Rayleigh and Rician channels respectively. The most common approach is to derive the capacity in the context of orthogonal frequencydivision multiplexing (OFDM) based spatial multiplexing systems.…”