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Performance Analysis of Tradeoff between Energy Consumption and Activation Delay in UMTS State Transition Mechanism
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 Title & Authors
Performance Analysis of Tradeoff between Energy Consumption and Activation Delay in UMTS State Transition Mechanism
Choi, Hyun-Ho;
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Mobile communication systems define user state transition mechanisms in order to manage radio resources and battery power efficiently. In the state transition mechanism, a state with a higher energy consumption inherently offers a shorter access delay, so there is a tradeoff between the energy and delay performances. In this paper, we analyze the user state transition mechanism of UMTS by considering the bursty traffic attributes of mobile applications. We perform a numerical evaluation for both the energy consumption and the activation delay by Markov modeling of the state transition mechanism, and investigate their tradeoff relationship as functions of operational parameters. The resulting energy-delay tradeoff curves clearly show an achievable performance bound of the user state transition mechanism and also offer an optimal operation strategy to minimize the energy consumption while guaranteeing the delay requirement.
energy-delay tradeoff;user state transition;power-saving;UMTS;
 Cited by
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