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In wireless ad hoc networks cooperation among nodes cannot always be assumed since nodes with limited resources and different owners are capable of making independent decisions.Cooperation problems in topology control and packet forwarding tasks have been mostly studied separately but these two tasks are not independent.Considering a joint cooperation problem by taking into account dependencies between tasks will result in more reliable and efficient networks.In this paper topology control definition is extended to cover cooperation problem in both packet forwarding and topology control in a single problem.In this definition nodes have to adjust their transmission power and decide on their relay role.This paper models the interactions of nodes as a potential game with two-dimensional utility function.The presented model,named TCFORCE (Topology Control packet FORwarding Cooperation Enforcement),preserves the network connectivity and reduces the energy consumption by providing cooperative paths between all pairs of nodes in the network.
In wireless ad hoc networks cooperation among nodes can not always been alerted to nodes with limited resources and different owners are capable of making independent decisions. Cooperation problems in topology control and packet forwarding tasks have been studied but separately but these two tasks are not independent. Citiesidering a joint cooperation problem by taking into account dependencies between tasks will result in more reliable and efficient networks.In this paper topology control definition is extended to cover cooperation problem in both packet forwarding and topology control in a single problem. adjust their transmission power and decide on their relay role. This paper models the interactions of nodes as a potential game with two-dimensional utility function. presented model, named TCFORCE (Topology Control packet Forwarding Cooperation Enforcement), preserves the network connectivity and reduces the energy consumption by providing cooperativ e paths between all pairs of nodes in the network.