From: Robust resource allocation for cognitive relay networks with multiple primary users
Symbol | Specification |
---|---|
\(h_{SR_{k}}^{i}\) | Channel gain of the i th subcarrier transmitted on S R k link |
\(h_{R_{k}D}^{i}\) | Channel gain of the i th subcarrier transmitted on R k D link |
\(P_{SR_{k}}^{i}\) | Transmit power of the i th subcarrier transmitted on S R k link |
\(P_{R_{k}D}^{i}\) | Transmit power of the i th subcarrier transmitted on R k D link |
\(h_{SP_{l}}^{i}\) | Channel gain of the i th subcarrier transmitted from S to the l th |
PU-RX (S P l link) | |
\(h_{R_{k}P_{l}}^{i}\) | Channel gain of the i th subcarrier transmitted from R k to the |
l th PU-RX (R k P l link) | |
\(\sigma _{ik}^{2}\) | Noise power of the i th subcarrier transmitted on S R k link |
\(\sigma _{iD}^{2}\) | Noise power of the i th subcarrier transmitted on R k D link |
\(J_{ik}^{l}\) | Interference power to the i th subcarrier transmitted on S R k |
link caused by the l th PU-TX | |
\(J_{iD}^{l}\) | Interference power to the i th subcarrier transmitted on R k D |
link caused by the l th PU-TX |