Mobility

Conflict on a Communication Channel

Date Added: Feb 2011
Format: PDF

Imagine that Alice wants to send a message to Bob, and that Carol wants to prevent this. Assume there is a communication channel between Alice and Bob, but that Carol is capable of blocking this channel. Furthermore, there is a cost of S dollars to send on the channel, L dollars to listen on the channel and J to block the channel. How much will Alice and Bob need to spend in order to guarantee transmission of the message? This problem abstracts many types of conflict in information networks including: jamming attacks in wireless networks and Distributed Denial-of-Service (DDoS) attacks on the Internet, where the costs to Alice, Bob and Carol represent an expenditure of energy and network resources.