8Amaldi E, Capone A, Malucelli F. Planning UMTS Base Station Location:Optimization Models with Power Control and Algorithms [J]. IEEE Transactions on Wireless Communications,2003,2(5) :939-952.
9Yang J, Aydin M E, Zhang J, et al. UMTS Base Station Location Planning : A Mathematical Model and Heuristic Optimization Algorithms [J]. IET Com-muni cations,2007,1(5):1 007 -1 014.