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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


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.

  • 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 networks.

  • There are four main components:

    • 1) the Simulator

    • 2) the NetworkManager

    • 3) the FlowsManager

    • 4) the FrameManager


Software design1
SOFTWARE DESIGN networks.


Software design2
SOFTWARE DESIGN networks.


Software design3
SOFTWARE DESIGN networks.

  • Four different traffic generators:

  • voice over IP (VoIP)

  • Constant bit rate (CBR)

  • Infinite buffer

  • Video


Software design4
SOFTWARE DESIGN networks.

  • 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 networks.

  • 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 networks.

  • 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.


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

  • #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 networks.

  • Simulator simulator = Simulator::Init( ) ;

  • FrameManager frameManager = FrameManager::Init( ) ;

  • NetworkManager networkManager = NetworkManager::Init( ) ;

  • FlowsManager flowsManager = FlowsManager::Init( ) ;


Create channels and spectrum
Create Channels and Spectrum networks.

  • LteChannel dlCh = new LteChannel ( ) ;

  • LteChannel ulCh = new LteChannel ( ) ;

  • BandwidthManager spectrum = new BandwidthManager ( 5 , 5 , 0 , 0 ) ;


Create an lte cell
Create an LTE cell networks.

  • 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) networks.

  • //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 ( ) ;


  • //Create UE networks.

  • 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 networks.

  • 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 ) ;



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