Monshizadeh and Khatri
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● Infrastructure as a Service (IaaS): provides virtualized infrastructures. Mobile operators can rent out their network elements, storage resources, computing system and
licenses to other operators;
● Platform as a Service (PaaS): an interface between applications in SaaS and VMs in
IaaS. PaaS controls VMs. This virtual platform is provided to developers for programming and web management. This programming can be related to network optimization,
adding new features and so on. The main added value for PaaS comes from providing
an easy‐to‐use mechanism to deploy customer’s software applications to the cloud
service and providing scaling for server capacity;
● Software as a Service (SaaS): an application layer that provides different kinds of
application software services to mobile operators, when they are relying on cloud
base services. The applications can be used for bandwidth control, Quality of Service
(QoS) management, network configuration, system backup and so on.
The proposed software stack can be implemented as a combination of the cloud
deployment model: public cloud, private cloud, community cloud and hybrid cloud. The
combination is based on security consideration and will be discussed in the next section.
14.4 MVNO Security
Security is the main issue of cloud services provided for mobile operators. Due to cloud
characteristics such as virtualization and multi‐tenancy, application sharing and open
source software, the associated security threats such as authentication, information
leakage and data corruption are also growing in the TaaS cloud environment. On the
other hand, due to the open nature of IP in mobile technologies, these networks are
potential targets of cyber‐attackers to intrude services and cause problems to the end
users and mobile operators. Although in later phases, extensions such as IPSec and
Authentication Authorization and Accounting (AAA) have been added into mobile
network implementations, security is still a main challenge in cloud computing, because
of the inconsideration in initial design of the Internet [10–11].
Due to the nature of 5G networks in extremely fast communication, it is important
how and which authentication mechanisms are chosen, since even the lowest latency
can have considerable effects on communication. Moreover, in 5G networks, delay in
setting up control plane security will impact the delay of sensitive applications such
as machine‐to‐machine (M2M). Common Non‐Access Stratum (NAS) signaling
MVNO2
IaaS
PaaS
SaaS
MVNO3
MVNO1
TaaS
Figure 14.1 TaaS stack.
326
● Infrastructure as a Service (IaaS): provides virtualized infrastructures. Mobile operators can rent out their network elements, storage resources, computing system and
licenses to other operators;
● Platform as a Service (PaaS): an interface between applications in SaaS and VMs in
IaaS. PaaS controls VMs. This virtual platform is provided to developers for programming and web management. This programming can be related to network optimization,
adding new features and so on. The main added value for PaaS comes from providing
an easy‐to‐use mechanism to deploy customer’s software applications to the cloud
service and providing scaling for server capacity;
● Software as a Service (SaaS): an application layer that provides different kinds of
application software services to mobile operators, when they are relying on cloud
base services. The applications can be used for bandwidth control, Quality of Service
(QoS) management, network configuration, system backup and so on.
The proposed software stack can be implemented as a combination of the cloud
deployment model: public cloud, private cloud, community cloud and hybrid cloud. The
combination is based on security consideration and will be discussed in the next section.
14.4 MVNO Security
Security is the main issue of cloud services provided for mobile operators. Due to cloud
characteristics such as virtualization and multi‐tenancy, application sharing and open
source software, the associated security threats such as authentication, information
leakage and data corruption are also growing in the TaaS cloud environment. On the
other hand, due to the open nature of IP in mobile technologies, these networks are
potential targets of cyber‐attackers to intrude services and cause problems to the end
users and mobile operators. Although in later phases, extensions such as IPSec and
Authentication Authorization and Accounting (AAA) have been added into mobile
network implementations, security is still a main challenge in cloud computing, because
of the inconsideration in initial design of the Internet [10–11].
Due to the nature of 5G networks in extremely fast communication, it is important
how and which authentication mechanisms are chosen, since even the lowest latency
can have considerable effects on communication. Moreover, in 5G networks, delay in
setting up control plane security will impact the delay of sensitive applications such
as machine‐to‐machine (M2M). Common Non‐Access Stratum (NAS) signaling
MVNO2
IaaS
PaaS
SaaS
MVNO3
MVNO1
TaaS
Figure 14.1 TaaS stack.