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LTE-Sim. 2014/05/13 報告者 - 蘇宏仁. 安裝流程. 1. 下載 LTE-SIM https://code.google.com/p/lte-sim/downloads/list 目前最新版本為 lte-sim-r5 2. 解壓縮 3.make. 執行指令. . /LTE-Sim Simple . /LTE-Sim -h. LTE-Sim is an open source framework to simulate LTE networks.

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lte sim

LTE-Sim

2014/05/13

報告者-蘇宏仁

slide2
安裝流程
  • 1.下載LTE-SIM
    • https://code.google.com/p/lte-sim/downloads/list
    • 目前最新版本為 lte-sim-r5
  • 2.解壓縮
  • 3.make
slide3
執行指令
  • . /LTE-Sim Simple
  • . /LTE-Sim -h
slide4

LTE-Sim is an open source framework to simulate LTE networks.

  • Simulate uplink and downlink scheduling strategies in multicell/multiuser environments, taking into account user mobility, radio resource optimization,QoS,handover procedures, frequency reuse techniques, the adaptive modulation and coding module.
software design
SOFTWARE DESIGN
  • There are four main components:
    • 1) the Simulator
    • 2) the NetworkManager
    • 3) the FlowsManager
    • 4) the FrameManager
software design3
SOFTWARE DESIGN
  • Four different traffic generators:
  • voice over IP (VoIP)
  • Constant bit rate (CBR)
  • Infinite buffer
  • Video
software design4
SOFTWARE DESIGN
  • PF: It assigns radio resources taking into account both the experienced channel quality and the past user throughput.
  • M-LWDF : It supports multiple data users with different QoS requirements.
  • EXP : It has been designed to increase the priority of real-time flows with respect to non-real-time ones, where their head-of-line packet delay is very close to the delay threshold.
lte sim simple
. /LTE-Sim Simple
  • 1) ID = Identifier. It uniquely identifies the packet.
  • 2) B = Bearer ID. It identifies the bearer used to map the packet.
  • 3) SRC = Source ID. It identifies the node that sends the packet.
lte sim simple1
. /LTE-Sim Simple
  • 4) DST = Destination ID. It identifies the node that receives the packet.
  • 5) T = Time. It represents the instant in which the packet is created.
  • 6) D = Delay. It represents the delay of the received packet.
slide12

#include " . . / channel /LteChannel.h"

  • #include " . . / core / spectrum/bandwidth-manager.h"
  • #include " . . / networkTopology / Cell .h"
  • #include " . . / core / eventScheduler / simulator.h"
  • #include " . . / flows / application / InfiniteBuffer.h"
  • #include " . . / flows /QoS/QoSParameters.h"
  • #include " . . / componentManagers/FrameManager.h"
  • #include " . . / componentManagers/FlowsManager.h"
  • static void SimpleScenario ( )
  • {
  • }
create four basic lte sim components
Create four basic LTE-Sim components
  • Simulator simulator = Simulator::Init( ) ;
  • FrameManager frameManager = FrameManager::Init( ) ;
  • NetworkManager networkManager = NetworkManager::Init( ) ;
  • FlowsManager flowsManager = FlowsManager::Init( ) ;
create channels and spectrum
Create Channels and Spectrum
  • LteChannel dlCh = new LteChannel ( ) ;
  • LteChannel ulCh = new LteChannel ( ) ;
  • BandwidthManager spectrum = new BandwidthManager ( 5 , 5 , 0 , 0 ) ;
create an lte cell
Create an LTE cell
  • int idCell = 0 ;
  • int radius = 1 ; //km
  • int minDistance = 0 .0035 ; //km
  • int posX = 0 ;
  • int posY = 0 ;
  • Cell* cell = networkManager->CreateCell (
  • idCell , radius , minDistance , posX , posY );
create network elements enb gw and ue
Create network elements (eNB, GW, and UE)
  • //Create ENodeB
  • int idEnb = 1 ;
  • ENodeB enb = networkManager->CreateEnodeb (
  • idEnb , cell , posX , posY , dlCh , ulCh , spectrum ) ;
  • Enb->SetDLScheduler(ENodeB::DLScheduler_TYPE_PROPORTIONAL_FAIR ) ;
  • //Create GW
  • Gateway gw = networkManager->CreateGateway ( ) ;
slide17

//Create UE

  • int idUe = 2 ;
  • int posX_ue = 4 0 ; //m
  • int posY_ue = 0 ; //m
  • int speed = 3 ; //km/h
  • double speeDirection = 0 ;
  • UserEquipment ue = networkManager->CreateUserEquipment (
  • idUe , posX_ue , posY_ue , speed , speeDirection , cell , enb ) ;
create an infinite buffer application
Create an Infinite Buffer Application
  • QoSParameters qos = new QoSParameters ( ) ;
  • int applicationID = 0 ;
  • int srcPort = 0 ;
  • int dstPort = 100;
  • int startTime = 1 0 ; // s
  • int stopTime = 3 0 ; // s
  • Application* be = flowsManager->CreateApplication (
  • applicationID ,gw, ue ,srcPort , dstPort , TransportProtocol::TRANSPORT_ PROTOCOL_TYPE_UDP ,Application::APPLICATION_TYPE_INFINITE_BUFFER , qos , startTime , stopTime ) ;
slide19

//Define the duration of the simulation.

  • simulator->SetStop ( 6 0 ) ;
  • //Call the Simulator::Run() function to start the simulation.
  • simulator->Run ( ) ;
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