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The authors study flow optimization in cognitive Wireless Mesh Networks (WMN) that do not possess any bandwidth of their own, but rather judiciously lease bandwidth from a collocated Cellular Network (CN). They develop a distributed mechanism that such WMNs can use to optimize their traffic given their own traffic needs and the cost that the CN is charging for the use of its bandwidth. They evaluate the mechanism in a synthetic scenario using the topology of an actual deployed WMN and time-varying traffic requirements induced from actual vehicle mobility traces. Simulations show that the mechanism can track well the changes in the traffic requirements of the WMN, continuously keeping close to the optimum operation point.
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