Achieving Secure and C。。 perative Wireless networks with Trust Modeling and Game Theory PhD Oral Defense Name: Li Xiaoqi, CSE, CUHK Supervisor: Michael R. Lyu Date: May 29th, 2009 Venue: SHB 1027
Achieving Secure and Cooperative Wireless Networks with Trust Modeling and Game Theory PhD Oral Defense Name: Li Xiaoqi, CSE, CUHK Supervisor: Michael R. Lyu Date: May 29th, 2009 Venue: SHB 1027
Outline o Background of Mobile Ad Hoc Networks ◆ Thesis part I A Trusted Routing Protocol for Security Issues of Mobile ad hoc networks ◆ Thesis part ll aA Coalitional Game Model for Security Issues of Wireless networks ◆ Thesis part lI a Coalitional game model for selfishness issues of Wireless Networks 2 May 29, 2009 CSE CUHK
2 May 29, 2009 CSE CUHK Outline ◆ Background of Mobile Ad Hoc Networks ◆ Thesis part I ◼ A Trusted Routing Protocol for Security Issues of Mobile Ad Hoc Networks ◆ Thesis part II ◼ A Coalitional Game Model for Security Issues of Wireless Networks ◆ Thesis part III ◼ A Coalitional Game Model for Selfishness Issues of Wireless Networks
Mobile ad hoc network ( MANETI e MANET is a collection of mobile nodes which communicates over wireless media ◆ Characteristics ■ Decentralization a Self-organization ■ Cooperation a Openness Uncertainty 3 May 29, 2009 CSE CUHK
3 May 29, 2009 CSE CUHK Mobile Ad Hoc Network (MANET) ◆ MANET is a collection of mobile nodes which communicates over wireless media. ◆ Characteristics ◼ Decentralization ◼ Self-organization ◼ Cooperation ◼ Openness ◼ Uncertainty
Applications of MANET Disaster Relief Battlefield Communication Outdoor Meeting efjohnsontechno g AsAr28D Ubiquitous Peer-to peer Market Multi-person Game Through bluetooth 4 May 29, 2009 CSE CUHK
4 May 29, 2009 CSE CUHK Applications of MANET Ubiquitous Peer-topeer Market Multi-person Game Through Bluetooth Disaster Relief Outdoor Meeting Battlefield Communication
Limitations of manet ◆ Security Issues Self-organization, decentralization and openness introduce insecurity a nodes lack sufficient information about each other a Malicious nodes can join the network freely The routing protocol has no security considerations ◆ Selfishness issues a Being cooperative is the design goal of MANET. Nodes belong to different self-interested entities a The mobile devices have limited resources 5 May 29, 2009 CSE CUHK
5 May 29, 2009 CSE CUHK Limitations of MANET ◆ Security Issues ◼ Self-organization, decentralization and openness introduce insecurity. ◼ Nodes lack sufficient information about each other. ◼ Malicious nodes can join the network freely. ◼ The routing protocol has no security considerations. ◆ Selfishness Issues ◼ Being cooperative is the design goal of MANET. ◼ Nodes belong to different self-interested entities. ◼ The mobile devices have limited resources