A surrogate constraint tabu thresholding implementation for the frequency assignmentproblem

This paper presents a surrogate constraint tabu thresholding (SCTT) implementationfor solving the frequency assignment problem. The frequency assignment problem is animportant combinatorial optimisation problem that arises in telecommunications. The mainobjective is to assign radio frequencies to a number of communication links such that interferenceis minimised. Interference is minimised by satisfying a number of problem specificconstraints. The surrogate constraint is created by taking a weighted sum of the constraintsnot satisfied. SCTT is compared with a tabu thresholding method from the literature on a setof simulated but realistic test problems with respect to quality of the solution in a given timeperiod. Computational results show that SCTT is more efficient and effective for all the testproblems.

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