On optimal call admission control in cellular networks
作者： Ramachandran Ramjee , Don Towsley , Ramesh Nagarajan
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摘要: Two important Quality-of-Service (QoS) measures for current cellular networks are the fractions of new and handoff “calls” that blocked due to unavailability “channels” (radio and/or computing resources). Based on these QoS measures, we derive optimal admission control policies three problems: minimizing a linear objective function call blocking probabilities (MINOBJ), probability with hard constraint (MINBLOCK) number channels constraints both (MINC). We show well-known Guard Channel policy is MINOBJ problem, while Fractional MINBLOCK MINC problems. The reserves set calls effectively non-integral guard by rejecting some depends channel occupancy. It also shown results in significant savings (20-50\%) problem provides some, though small, gains over problem. Further, develop computationally inexpensive algorithms determination parameters policies.
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