Parameters | Meaning |
---|---|
MBS | Macro base station |
SBS | Femto base station |
MUE | Macro user |
FUE | Femto user |
RB | Resource block |
L | Number of macrocells |
N | Number of femtocells or number of players |
Y | Number of macro users |
X | Number of femto users |
Q | Total pool RBs |
G | Number of RBs acquired by each SBS |
W | System bandwidth |
R | Number of power levels utilized by SBS |
\( {p}_l^{g,M} \) | Transmission power of lth MBS on th \( g \)th RB |
\( {p}_n^{g,F} \) | Transmission power of nth SBS on th \( g \)th RB |
\( {P}_{\mathrm{MAX}}^M \) | Maximum transmission power of MBS |
\( {P}_{\mathrm{MAX}}^F \) | Maximum transmission power of SBS on G RBs |
p c | Circuit power |
\( {h}_{nn,x}^{g,F-F} \) | Channel gain between nth SBS and xth FUE operating on th \( g \)th RB |
\( {h}_{\ln, x}^{g,M-F} \) | Channel gain between lth MBS and xth FUE of nth SBS operating on th \( g \)th RB |
\( {\varDelta}_n^F \) | Achieved throughput by nth SBS |
\( {\mathrm{EE}}_n^F \) | Achieved energy efficiency by nth SBS |
Γ F | Minimum capacity of SBS |
\( {\zeta}_n^{M-F} \) | Accumulated cross-tier interference limit on nth SBS |
\( {\zeta}_n^{F-F} \) | Accumulated co-tier interference limit on nth SBS |
A n | Action profile associated with nth player |
U n | Utility function associated with nth player |
\( {S}_n^F \) | Selection of G RBs by nth SBS |
\( {P}_n^F \) | Power allocation of G RBs by nth SBS |
\( {A}_n^{*} \) | Optimal action profile |
\( {S}_n^{*F} \) | Optimal RB allocation |
\( {P}_n^{*F} \) | Optimal power allocation |
T | Number of particles in PSO-based power allocation |
O j | jth particle position of PSO-based power allocation |