Part III Coherent SDM-OFDM Systems
List of Symbols in Part III
| AT | Matrix/vector transpose |
| A* | Matrix/vector/scalar complex conjugate |
| AH | Matrix/vector Hermitian adjoint, i.e. complex conjugate transpose |
| A−1 | Matrix inverse |
| A+ | Moore–Penrose pseudo-inverse |
| tr (A) | Trace of matrix, i.e. the sum of its diagonal elements |
| K | Number of OFDM subcarriers |
| nr | Number of transmit antennas |
| mt | Number of receive antennas |
| fD | Maximum Doppler frequency |
| ντ | OFDM-symbol-normalized PDP tap drift rate |
| fc | Carrier frequency |
| B | Signal bandwidth |
| Ts | OFDM FFT frame duration |
| Τrms | RMS delay spread |
| T | OFDM symbol duration |
| Lf | Number of data frames per transmission burst |
| Np | Number of pilot SDM-OFDM symbols in burst preamble |
| Nd | Number of data SDM-OFDM symbols per data frame |
| ζ | MIMO-CTF RLS tracking filter forgetting factor |
| η | PASTD-aided CIR tap tracking filter forgetting factor |
| β | RLS CIR tap prediction filter forgetting factor |
| ε | Pilot overhead |
| ρ | OHRSA search radius factor parameter |
| γ | OHRSA search resolution parameter |
|
Gaussian noise variance |
| Eb | Energy per transmitted bit |
| Es | Energy per transmitted M-QAM symbol |
| R | Size of the transmitted bit-wise signal vector t |
| I | Mutual information |
| C | Unconstrained capacity |
| (ice, idet, idec) | Number of (channel ... |
