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Energy-efficient data transmission with non-FIFO packets

机译:带有非FIFO数据包的节能数据传输

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This paper investigates the problem of energy-efficient packet transmission with arbitrary arrival instants and deadline constraints over a point-to-point additive white Gaussian noise (AWGN) channel. This is different from previous work where it is assumed that the packets follow a First-In-First-Out (FIFO) order in that a packet that arrives earlier has a deadline that is also earlier. We first investigate the necessary and sufficient conditions of the optimal transmission schedule. We then propose an algorithm which finds the transmission schedule of each packet. Next, we show that our algorithm satisfies the sufficient conditions of the optimal transmission schedule and thus, is optimal. Finally, simulation results show that the proposed policy can achieve significant energy savings compared to the existing FIFO policy.
机译:本文研究了在点到点加性高斯白噪声(AWGN)通道上具有任意到达时刻和截止期限约束的节能数据包传输问题。这与先前的工作不同,在先前的工作中,假定数据包遵循先进先出(FIFO)的顺序,因为较早到达的数据包的截止日期也较早。我们首先研究最佳传输时间表的必要条件和充分条件。然后,我们提出一种算法,该算法可以找到每个数据包的传输时间表。接下来,我们证明了我们的算法满足了最优传输调度的充分条件,因此是最优的。最后,仿真结果表明,与现有的FIFO策略相比,所提出的策略可以节省大量能源。

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