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Wireless ad hoc networks require bidirectional data transmission to support two-way traffic and control functions like packet acknowledgement. Most prior work on the capacity of wireless ad hoc networks, however, has focused only on one-way communication. In this paper, the authors develop the concept of transmission capacity of two-way communication in wireless ad hoc networks. The transmission capacity has been used extensively to analyze one-way ad hoc networks - in this paper they provide a generalization that incorporates the concept of a two-way outage. They derive an upper bound and an approximation for the two-way transmission capacity, which are shown to be relatively tight for small outage probability constraints.
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