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arXiv 2103.13797cs.ITmath.IT
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具有前瞻性的能量收集通信的最优功率控制

On Optimal Power Control for Energy Harvesting Communications with Lookahead

Ali Zibaeenejad, Shengtian Yang, Jun Chen

摘要:

考虑能量收集通信系统的功率控制问题,其中发射机配备有有限尺寸的可充电电池,并且能够向前看以观察固定数量的未来能量到达。通过Bellman方程,在能量到达过程平稳无记忆的假设下,给出了在加性高斯白噪声信道下的最大平均吞吐量和最优功率控制策略.伯努利能量到达的情况下,通过渐近紧的最大平均吞吐量和最优功率控制策略的上限和下限得到一个更明确的表征。除了他们的关键作用,在获得所需的分析结果,这样的界限是非常有价值的,从数值的角度来看,因为它们可以有效地计算使用凸优化求解器。

英文摘要:

Consider the problem of power control for an energy harvesting communication system, where the transmitter is equipped with a finite-sized rechargeable battery and is able to look ahead to observe a fixed number of future energy arrivals. An implicit characterization of the maximum average throughput over an additive white Gaussian noise channel and the associated optimal power control policy is provided via the Bellman equation under the assumption that the energy arrival process is stationary and memoryless. A more explicit characterization is obtained for the case of Bernoulli energy arrivals by means of asymptotically tight upper and lower bounds on both the maximum average throughput and the optimal power control policy. Apart from their pivotal role in deriving the desired analytical results, such bounds are highly valuable from a numerical perspective as they can be efficiently computed using convex optimization solvers.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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