Integrated Wireless-pon access Network Architectures Milos Milosavljevic

Chapter 5 Interoperability of xPON and WiMAX 
100 
within the 20 km fibre is expected to be moderate, Rayleigh and Brillouin backscattering and 
non-linearity effects are disabled to considerably save in simulation time. 
Table 5-7: 20 km SSMF parameters
 
Parameter 
Value 
Unit 
Length 
20 
km 
Group Refractive Index 
1.47 
/ 
Attenuation 
0.2 
dB/km 
Dispersion 
16e-6 
s/m^2 
Dispersion Slope 
0.08e3 
s/m^3
Rayleigh, Brillouin 
Disabled 
/ 
 

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Chapter 5 Interoperability
5.3 Network Modelling and Simulation Results
In order to demonstrate the capability of the new architecture to 
IEEE802.16d WiMAX chann
physical layer simulation 
was used to demonstrate 
single wavelength and to wi
WiMAX channels was evaluated
case scenario.
Figure 5-
The WiMAX OFDM transmitters 
modulation. The OFDM is implemented by
corresponding to maximum attainable dat
implementation of the WiMAX transmitte
Five downstream WiMAX channels from 3.3
converted in the OLT using a 500 MHz LO before being applied to a Gaussian BPF with a 4 
Chapter 5 Interoperability
101 
.3 Network Modelling and Simulation Results 
In order to demonstrate the capability of the new architecture to 
IEEE802.16d WiMAX channels successfully over combined xPON and radio
physical layer simulation platform was devised as shown in Figure 5-5.
demonstrate WiMAX transmission over multiple subcarriers to ONU/BSs on a 
single wavelength and to wireless users bi-directionally. In downstream
evaluated with no channel coding applied in order to present a worst