
Virtual Mobile Networks in Clouds 185
in wired networks can be used. It is however challenging to share
RANs efficiently because of additional challenges posed by wireless
channels.
4.4 System Model for Sharing
The rest of the chapter takes scenario 4 (see Figure 4.8a) of the
previous section as the system model for C-RAN sharing and it
will be analyzed thoroughly under LTE flow assignment for mobile
users. The entire RAN network including the spectrum is shared
Spectrum pool(b)
MNO-2 UEs
UE-3
UE-2
UE-1
Flow 3
Flow 1
Flow 4
Flow 2
MNO-1 UEs
Core
network
1
Core
network
2
Spectrum pool
Shared common RAN
(a)
Figure 4.8 System model for virtual mobile network sharing. (a) ...