In cellular networks, inactivity timers are used to control the release of radio resources. However, considerable radio resources and battery energy are wasted in the tail time. In this abstract, we proposed TailTheft, which leverages the tail time for batching and pre fetching. Our work is the first to consider using rather than eliminating the tail time for saving energy. To utilize the tail time, TailTheft uses a virtual tail time mechanism to determine the amount of tail time that can be used and a dual queue scheduling algorithm to schedule transmissions. Given that numerous transmissions are scheduled in the tail time, energy consumption is significantly decreased. We evaluate TailTheft using real application traces, and the experimental results show that TailTheft can achieve significant savings on battery energy (up to 65%) and dedicated radio resources (up to 56%), compared to the default policy.
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