How to implement slicing HetNets in OMNeT++
To implement network slicing in Heterogeneous Networks (HetNets) in OMNeT++ has includes to generate the multiple virtualized network slices on uppermost of the same physical infrastructure and the each slice serves a diverse kinds of service or application with particular quality of service (QoS) requirements. Network slicing is especially interconnected in 5G networks, where different slices can be personalised for use cases like improved mobile broadband (eMBB), ultra-reliable low-latency communications (URLLC), and massive machine-type communications (mMTC). The given below are the procedures to implement the HetNets in OMNeT++:
Step-by-Step Implementation:
Step 1: Set Up the OMNeT++ Environment
Make sure that OMNeT++ and essential models, like INET or Simu5G (for LTE/5G networks), are installed and configured correctly.
Step 2: Define the Network Slices
In network slicing, each slice is necessary for a virtual network personalised to particular needs. We can describe diverse slices as isolate modules that perform over the same physical infrastructure.
Example Network Slice Modules
module eMBB_Slice
{
gates:
inout backhaul;
inout wireless;
}
module URLLC_Slice
{
gates:
inout backhaul;
inout wireless;
}
module mMTC_Slice
{
gates:
inout backhaul;
inout wireless;
}
Step 3: Define the Physical Infrastructure
Describe the physical components of the HetNet, like the base stations and user equipment, which will be distributed among the diverse slices.
Example Physical Infrastructure Definition
module PhysicalBaseStation
{
gates:
inout backhaul;
inout wireless;
}
module PhysicalUE
{
gates:
inout wireless;
}
Step 4: Create the HetNet with Slices
Describe a network that has encompasses the physical base stations and user equipment. Each physical base station helps multiple network slices.
Example HetNet with Slices
network HetNetWithSlices
{
submodules:
phyBS: PhysicalBaseStation;
ue1: PhysicalUE;
ue2: PhysicalUE;
ue3: PhysicalUE;
embbSlice: eMBB_Slice;
urllcSlice: URLLC_Slice;
mmtcSlice: mMTC_Slice;
router: Router;
core: CoreNetworkNode;
connections allowunconnected:
// Physical infrastructure connections
phyBS.backhaul <–> EthernetCable <–> router.ethg++;
router.ethg++ <–> EthernetCable <–> core.backhaul++;
ue1.wireless <–> IdealWirelessLink <–> phyBS.wireless;
ue2.wireless <–> IdealWirelessLink <–> phyBS.wireless;
ue3.wireless <–> IdealWirelessLink <–> phyBS.wireless;
// Slices connected to physical infrastructure
embbSlice.backhaul <–> phyBS.backhaul;
urllcSlice.backhaul <–> phyBS.backhaul;
mmtcSlice.backhaul <–> phyBS.backhaul;
embbSlice.wireless <–> phyBS.wireless;
urllcSlice.wireless <–> phyBS.wireless;
mmtcSlice.wireless <–> phyBS.wireless;
}
Step 5: Implement Slice-Specific Policies
State the specific policies for each slice, like QoS requirements, bandwidth allocation, and latency constraints. This is usually completed within each slice module.
Example Slice-Specific Policies (Simplified)
For eMBB (high bandwidth):
class eMBB_Slice : public cSimpleModule
{
protected:
virtual void initialize() override;
virtual void handleMessage(cMessage *msg) override;
};
void eMBB_Slice::initialize()
{
// eMBB slice specific initialization, e.g., allocate high bandwidth
EV << “eMBB Slice initialized with high bandwidth.” << endl;
}
void eMBB_Slice::handleMessage(cMessage *msg)
{
// Handle messages with priority for high-bandwidth services
EV << “Handling eMBB message with high bandwidth requirement.” << endl;
send(msg, “out”);
}
For URLLC (low latency):
class URLLC_Slice : public cSimpleModule
{
protected:
virtual void initialize() override;
virtual void handleMessage(cMessage *msg) override;
};
void URLLC_Slice::initialize()
{
// URLLC slice specific initialization, e.g., prioritize low latency
EV << “URLLC Slice initialized with low latency.” << endl;
}
void URLLC_Slice::handleMessage(cMessage *msg)
{
// Handle messages with priority for low-latency services
EV << “Handling URLLC message with low latency requirement.” << endl;
send(msg, “out”);
}
For mMTC (massive connectivity):
class mMTC_Slice : public cSimpleModule
{
protected:
virtual void initialize() override;
virtual void handleMessage(cMessage *msg) override;
};
void mMTC_Slice::initialize()
{
// mMTC slice specific initialization, e.g., support massive connectivity
EV << “mMTC Slice initialized for massive connectivity.” << endl;
}
void mMTC_Slice::handleMessage(cMessage *msg)
{
// Handle messages with priority for massive IoT devices
EV << “Handling mMTC message with massive connectivity requirement.” << endl;
send(msg, “out”);
}
Step 6: Configure the Simulation Parameters
Setup the simulation parameters, like the number of UEs, slice-specific traffic types, and QoS requirements, in the .ini file.
Example Configuration in the .ini File
network = HetNetWithSlices
sim-time-limit = 100s
# eMBB slice parameters
*.embbSlice.wireless.dataRate = 1Gbps
*.embbSlice.wireless.latency = 10ms
# URLLC slice parameters
*.urllcSlice.wireless.dataRate = 100Mbps
*.urllcSlice.wireless.latency = 1ms
# mMTC slice parameters
*.mmtcSlice.wireless.dataRate = 10Mbps
*.mmtcSlice.wireless.latency = 50ms
# Traffic generation for UEs connected to different slices
*.ue1.numApps = 1
*.ue1.app[0].typename = “UdpBasicApp”
*.ue1.app[0].destAddress = “10.0.0.1” # Core network address
*.ue1.app[0].destPort = 5000
*.ue1.app[0].messageLength = 1024B
*.ue1.app[0].sendInterval = exponential(1s)
*.ue1.sliceType = “eMBB”
*.ue2.numApps = 1
*.ue2.app[0].typename = “UdpBasicApp”
*.ue2.app[0].destAddress = “10.0.0.1”
*.ue2.app[0].destPort = 5000
*.ue2.app[0].messageLength = 1024B
*.ue2.app[0].sendInterval = exponential(1s)
*.ue2.sliceType = “URLLC”
*.ue3.numApps = 1
*.ue3.app[0].typename = “UdpBasicApp”
*.ue3.app[0].destAddress = “10.0.0.1”
*.ue3.app[0].destPort = 5000
*.ue3.app[0].messageLength = 1024B
*.ue3.app[0].sendInterval = exponential(1s)
*.ue3.sliceType = “mMTC”
Step 7: Run the Simulation
Compile and execute the simulation. Monitor how various UEs are distributed resources based on their interconnected slice like eMBB, URLLC, mMTC and how these resources are handling based on to the slice-specific policies.
Step 8: Analyse the Results
To evaluate the performance of the network slices using the OMNeT++’s analysis tools. we can study the parameters such as latency, throughput, and resource utilization for each slice to make sure that the QoS requirements are being met.
Step 9: Extend the Simulation (Optional)
Expand the replication by introducing dynamic slice management that adds more UEs, simulating mobility, or executing more complex slice-specific algorithms.
In the entire setup we had clearly talk about the how the Heterogeneous Networks slices in 5G scenario using the tool of OMNeT++ tool. We will provide insights into the implementation of the Heterogeneous Networks slices in diverse simulation scenarios.
Your reliable companion will be omnet-manual.com; we’ll walk you through everything with succinct explanations. In order to implement slicing HetNets in OMNeT++, please contact us with the specifics of your project. Our developers can handle network performance for your applications. We work on projects relevant to yours and provide the greatest ideas in mobile broadband (eMBB) and ultra-reliable low-latency communications (URLLC).