a load balancing algorithm against ddos attacks in … · a load balancing algorithm against ddos...
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Outline Introduction The proposed Tecnique Conclusion
A Load Balancing Algorithmagainst DDoS Attacks
in Beyond 3G Wireless Networks
Stefania Zinno, Giovanni Di Stasi, Stefano Avallone,Giorgio Ventre
Università degli Studi di Napoli Federico IIDipartimento di Ingegneria Elettrica e delle Tecnologie dell’Informazione
INW 201512th Italian Networking Workshop: Cavalese, Italy
Outline Introduction The proposed Tecnique Conclusion
1 IntroductionFundamentals
2 The proposed TecniqueSimulations
3 ConclusionResults
Outline Introduction The proposed Tecnique Conclusion
Long Term Evolution Network
LTE also known as 4G is a Wireless Standard developed by3GPP, the 3rd Generation Partnership Project.
- OFDMA- MIMO Techniques- IP-based system- DL 3 Gbps,
UL 1.5 Gbps
Outline Introduction The proposed Tecnique Conclusion
Denial of Service Attacks
DDoS stands for Distributed Denial of Service. It is a specificDenial of Service attack performed by a multitude ofcompromised systems against a specific target.
- BotMaster- Handler- Agent o Zombie- Victim Host Network
Outline Introduction The proposed Tecnique Conclusion
Handover Procedure
Handover is supported in LTE networks to ensure servicecontinuity when moving out of the LTE coverage area.
- Network Controlled UEAssisted
- Based on X2 Interface andReceived Signal StrengthIndication
Outline Introduction The proposed Tecnique Conclusion
Self Organizing Network
Self-organizing networks (SON) are the attempt to simplify andspeed up the planning, configuration, management,optimization and healing of LTE and LTE-Advanced-basednetworks.
Outline Introduction The proposed Tecnique Conclusion
Load Balancing Procedure in RRC stateCONNECTED
Outline Introduction The proposed Tecnique Conclusion
Transport Block
Ns3 offers a much more plain MAC model than the 3GPP one.Transport block is equal to a MAC PDU.
Outline Introduction The proposed Tecnique Conclusion
Load Balancing Tecnique
The Algorithm is:- Distributed- Iterative- Local- Optimized- Perfectly Integrated
in LTE Architecture
Outline Introduction The proposed Tecnique Conclusion
eNodeB ControlMessages:
- Late Path Switching- Measurement
Report- Loseless and
Seamless DataCommunication
Outline Introduction The proposed Tecnique Conclusion
Ns3 Simulation Environment for Networking Research
Ns-3 is a network simulator for Internet systems, targetedprimarily for research and educational use. Ns-3 is freesoftware and is publicly available for research, development,and use.
- Discrete-eventnetwork simulator
- Open Source- Librerie C++
Outline Introduction The proposed Tecnique Conclusion
Ns3 Module
Two are the main modified classes:
- lte-enb-rrc.h- epc-x2-sap.h
Outline Introduction The proposed Tecnique Conclusion
Callback Ns3
At execution time all information regarding all TB scheduled arecollected by each eNodeB through a DL transmission statisticscallback
Outline Introduction The proposed Tecnique Conclusion
Implementation Details
Outline Introduction The proposed Tecnique Conclusion
Scenario Set Up
eNodeB: ConstantPosition Mobility ModelUE: Constant VelocityMobility Model constantspeed of 20 m/s.
Multimedia Users:- Non Guaranteed Bit Rate
VIDEO TCP PREMIUM- Non Guaranteed Bit Rate
VIDEO TCP DEFAULT- Guaranteed Bit Rate NON
CONVersational VIDEOVoice Users:
- Tre Guaranteed Bit RateCONVersational VOICE
Outline Introduction The proposed Tecnique Conclusion
Scenario:Network Topology and Packet Traffic
Outline Introduction The proposed Tecnique Conclusion
Scenario:Ten attacked eNodeB
Outline Introduction The proposed Tecnique Conclusion
Results
- More efficiency achieved in resource distribution- Traffic flows and network performances are increased- Perfectly integrated with LTE Modules- No backup infrastructure needed
Outline Introduction The proposed Tecnique Conclusion