Hongxu Cui

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CAP, a classical problem in cellular mobile communication networks such as GSM/GPRS or CDMA cellular mobile networks, refers to assigning a limited number of available channels to many mobile voice or data users while minimizing electromagnetic interferences. Most existing researches on CAP focus mainly on channel separation constraints, but pay little(More)
Frequency optimization is one of unique and key works in GSM/GPRS network optimizing, and its theoretical basis is channel assignment problem (CAP). A practical heuristic CAP algorithm HFA is proposed. The algorithm ranks the calls in descending order of "assignment difficulty coefficients ADC". The concept of hotspot cells is introduced, and calls in(More)
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