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The connectivity and capacity of large ad hoc networks have been studied extensively under standard point-to-point physical layer assumptions. However, extensive recent research has demonstrated the improvement in performance possible when multiple radios concurrently transmit in the same radio channel. In this paper, the authors consider how such physical layer cooperation improves the connectivity in wireless ad hoc networks. Wireless ad hoc networks have been a topic of extreme interest recently. Naturally, connectivity is one of the key issues that requires significant study since few network services can function properly if the network is disconnected.
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