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IEEE 802.16, also known as WiMAX (Worldwide Inter-operability for Microwave Access), is a new wireless access technology for current increasing demand of wireless high-speed broadband service. Efficient and effective deployment of such a network to service an area of users with certain traffic demands is an important network planning problem. This network planning can be formulated in a similar way as the unsplittable capacitated facility location problem. Different from traditional p-median or splittable capacitated facility location models, which are already known to be NP-complete to obtain exact solutions, the unsplittable capacitated facility location problem is even harder. In addition, the limited communication range adds another layer of complexity.
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