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Power-Saving Mechanism Considering Round-Trip Delay in LTE Systems
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 Title & Authors
Power-Saving Mechanism Considering Round-Trip Delay in LTE Systems
Choi, Hyun-Ho;
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In this paper, we propose a new power-saving mechanism (PSM) for Long-Term Evolution (LTE) systems by considering a round-trip delay between a user equipment (UE) and its correspondence node. The proposed PSM changes the order of the operational procedures of the legacy LTE PSM by taking the traffic arrival pattern suffering the round-trip delay into account. After modeling the round-trip delay, we numerically analyze the proposed PSM with respect to energy consumption and buffering delay. Then, we characterize these performances by employing a simple energy-delay tradeoff (EDT) curve according to the operational parameters. The resulting EDT curve clearly shows that the proposed PSM outperforms the legacy LTE PSM in terms of both the energy consumption and buffering delay.
power-saving mechanism;energy-delay tradeoff;sleep interval;long-term evolution (LTE);
 Cited by
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