LTE / LTE - Advanced

Overview:

NetSim Long-Term Evolution (LTE) Model Library provides high fidelity simulation of 4G / 4.5G cellular networks based on the 3GPP TS 36.xxx standards.
It includes models of nodes called MME (Mobility Management Entity), eNodeB (Base Station), Relay and UE (Mobile Station) and each has detailed MAC and PHY models. NetSim comes with source C code and features

Devices:

LTE comes with some LTE Specific devices like MME, eNB, UE and Relay along with Router, access point, L2 / L3 Switch switch, wired and wireless node.


LTE covers the following protocols:

  • Physical Layer

    • Protocol: LTE/LTE-Advanced. Standard: 3GPP 36 TS 36.213
    • Frequency Band – 700 MHz to 2.7 GHz
    • Bandwidth – 5/10/15/20 MHz
    • Modulation Techniques – QPSK, 16QAM, 64QAM
    • Downlink Access Scheme – OFDMA
    • Uplink Access Scheme – SC-FDMA
    • Duplexing – FDD
    • Transmitter Power – 1 to 100 mW
    • Frame Duration – 10 ms
    • SubFrame Duration – 1 ms
    • Slot Duration – 0.5 ms
    • Subcarrier Spacing – 15 kHz
    • OFDMA symbols per slot – 7
    • Transmission Mode Index – 0/1/2/3/4
    • Carrier Aggregation – Intra Band Contiguous/ Intra Band Non-contiguous/ Inter Band Non-contiguous
    • No of Transmitting Antenna – 4 to 100
    • Sampling Frequency – 7.68 MHz (for 5 MHz bandwidth), 15.36 MHz (for 10 MHz bandwidth), 23.04 MHz (for 15 MHz bandwidth), 30.72 MHz (for 20 MHz bandwidth)
    • No of Resource Block – 25 (for 5 MHz bandwidth)/50 (for 10 MHz bandwidth)/75 (for 15 MHz bandwidth)/100 (for 20 MHz bandwidth)
    • Physical Layer Rate: The max down link speed for 4X2 MIMO 403.2 Mbps but 25% is overhead so it comes approximately 300 Mbps
  • MAC Layer

    • LTE Device-to-Device Model
    • LTE Femtocell Model
    • Types of Scheduling: Round Robin, Max Throughput, Proportional Fair
    • Error correction through HARQ
    • Multiplexing of MAC SDUs from one or different logical channels onto transport blocks (TB) to be delivered to the physical layer on transport channels
    • Demultiplexing of MAC SDUs from one or different logical channels from transport blocks (TB) delivered from the physical layer on transport channels
  • Network Layer

    • IPv4
  • Transport Layer

    • TCP with different variants (like Old Tahoe, Tahoe, Reno, New Reno, BIC CUBIC)
    • UDP
  • Application Layer

    • Different application protocols can be modelled here such as HTTP, CBR, Email, Video, Voice, FTP etc.
    • Routing Protocols for MME are RIP and OSPF
  • Mobility Model: Random Walk, Random Way Point, Group Mobility and File Based Mobility

Network Scenario:

Output Performance Metrics:A variety of network performance is reported including
  • Network Metrics
  • LTE Metrics
  • IP metrics, TCP / UDP Metrics etc.
  • Application Metrics
  • Dynamic metrics (Graphical plot of an attribute over time) is available for application throughputs and individual link throughput also.

Additional Information

Knowledgebase Q&A
File Exchange Link
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