From: Capacity analysis of LTE-Advanced HetNets with reduced power subframes and range expansion
Symbol | Description |
---|---|
λ,λ′,λu | Intensities of the MBS, PBS, and UE nodes,respectively |
| Maximum transmit powers of MBS and PBS,respectively |
K,K′ | Signal attenuation factors that account forgeometrical parameters such as the transmitter/receiver antenna heights of the MBS and the PBS, respectively |
P,P′ | Effective maximum transmit powers of MBSand PBS, respectively, after considering theattenuation factors K and K′ |
α | Power reduction factor for MBS during thetransmission of CSFs |
β | Duty cycle for the transmission of USFs |
τ | Range expansion bias for picocells |
ρ,ρ′ | Scheduling thresholds for MUEs and PUEs,respectively |
r,r′ | Distances of a UE from its MOI and POI,respectively |
δ | Path-loss exponent |
S(r),S′(r′) | RSRPs from the MOI and the POI, respectively |
H,H′ | Exponentially distributed random variablesthat account for Rayleigh fading for thetransmissions from MBS and PBS, respectively |
Z,Z′ | Total interference power at a UE during USFand CSF, respectively |
γ,γ′ | SIRs from MOI and POI, respectively, duringUSFs |
| SIRs from MOI and POI, respectively, duringCSFs |
| Mean number of USF-MUEs, USF-PUEs,CSF-MUEs, and CSF-PUEs, respectively, in a cell |
| Mean aggregate SEs for USF-MUEs, USF-PUEs,CSF-MUEs, and CSF-PUEs, respectively, in a cell |
| Per-user SEs for USF-MUEs, USF-PUEs,CSF-MUEs, and CSF-PUEs, respectively, in a cell |
Csum,Clog | Sum of capacities and sum of log capacities ina cell |