1 Introduction
2 Adaptive SON architecture
2.1 Preliminary
2.2 Existing SON architecture
2.3 5G SLPN solution
3 SLPN for adaptive SON
3.1 Construction of interference matrix
3.2 Multilayer frequency reuse and power assignment
3.3 Multi-sector frequency reuse
3.4 SLPN optimization algorithm
4 Numerical results
Cellular layout | Hexagonal grid, 19 cell sites, 3 |
---|---|
sectors per site | |
Inter-site distance | 500 |
System bandwith | 1GHz |
Simulation scenario | ITU-UMa |
Penetration loss | 10dB |
Antenna pattern |
\(A(\theta )=-min[12\frac {\theta }{\theta _{3dB}},A_{m}]\), |
(horizontal) |
𝜃
3d
B
=70d
e
g
r
e
e
s, A
m
=20d
B
|
Antenna configuration | Single-Input-Single-Output |
Channel model | Rayleigh fading model |
eNB antenna gain | 14dBi |
LPN antenna gain | 5dBi |
eNB TX power | 46dBm |
LPN TX power | 30dBm |
Thermal noise density | -174dBm/Hz |
Downlink interference | Explicit modeling(all links are |
simulated) | |
Frequency reuse for eNB | PFR |
Traffic model | Full buffer |
User Access strategy | Cell range expansion |
SLPN sector and layer numbers | (M=3, N=3), if no specification |
otherwise. | |
SLPN power allocation | See Eq. 6) |