Upper Bounds for the Span in Triangular Lattice Graphs: Application to Frequency Planning for Cellular Network Ecole Normale Supérieure De Lyon Upper Bounds for the Span in Triangular Lattice Graphs: Application to Frequency Planning for Cellular Network
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چکیده
We study a problem coming from the design of wireless cellular radio communication network Frequency planning constraints are modelled in terms of graph theory For each planning function f let us call sp f or the span of the fre quency planning f the di erence between the largest and the smallest frequency used Let the Order of the graph be Or G sp G and the maximal local order of the graph the maximum order of a clique of G i e Mlo G max X clique of G sp X We show
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