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 CUHK5 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