Table 2 Notation for the symbols
B | Block length |
\(B_{\mathrm{max}}\) | Maximum value of B |
\(E_{\mathrm{b}}\) | Energy per bit |
\(h_{u,l}\) | Complex channel gain of the lth propagation path for the uth user |
I | One chunk length for the interleaved block subcarrier allocation |
\({\mathcal {K}}\) | Constraint length |
L | Discrete paths with the different time delay |
\(N_{0}\) | Single side power spectral density |
\(N_{\mathrm{c}}\) | Number of subcarriers |
\(N_{\mathrm{d}}\) | Number of data symbols |
\(N_\mathrm{ici}\) | Power of the ICI |
\(N_{\mathrm{u}}\) | Number of users |
\(\tilde{N}_{\mathrm{c}}\) | \(\lfloor N_{\mathrm{c}}/N_{\mathrm{u}} \rfloor\) |
R | Coding rate |
S | Average transmission power |
\(T_\mathrm{wf}\) | Threshold for the WF |
\(W_\mathrm{wf}\) | Weight for the WF |
\(\tau _{u,l}\) | Delay time of the lth propagation path for the uth user |
\(\mathbf {\Phi }_{\tilde{N}_{\mathrm{c}}}\) | Spreading matrix for \((\tilde{N}_{\mathrm{c}} \times \tilde{N}_{\mathrm{c}})\) |
\(E[\cdot ]\) | Ensemble average operation |
max(g) | Maximum value of g |
\(\lfloor g \rfloor\) | Integer lower and closer to g |
\((\cdot )^{*}\) | Complex conjugate operation |
\((\cdot )^{-1}\) | Inverse operation |
\((\cdot )^{\mathrm {T}}\) | Transpose operation |