2018
DOI: 10.1155/2018/5296406
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Fog Computing‐Assisted Energy‐Efficient Resource Allocation for High‐Mobility MIMO‐OFDMA Networks

Abstract: This paper presents a suboptimal approach for resource allocation of massive MIMO-OFDMA systems for high-speed train (HST) applications. An optimization problem is formulated to alleviate the severe Doppler effect and maximize the energy efficiency (EE) of the system. We propose to decouple the problem between the allocations of antennas, subcarriers, and transmit powers and solve the problem by carrying out the allocations separately and iteratively in an alternating manner. Fast convergence can be achieved f… Show more

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Cited by 4 publications
(3 citation statements)
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“…In this regard, researchers 44 suggested a resource allocation algorithm mainly focusing on optimizing and reducing the Doppler effect. More precisely, they aimed to formulate and maximize the system's energy.…”
Section: Energy Management In Fog Computingmentioning
confidence: 99%
“…In this regard, researchers 44 suggested a resource allocation algorithm mainly focusing on optimizing and reducing the Doppler effect. More precisely, they aimed to formulate and maximize the system's energy.…”
Section: Energy Management In Fog Computingmentioning
confidence: 99%
“…Lu et al developed a biodegradable solar cell with a lifetime of 4 months placed inside a rat, which could produce a power of 60 milliwatts, equal to powering a LED. 336 Gutruf et al developed battery-less multifunctional and permanently implantable pacemakers that are considered suitable for usage in animal models like mice. The tools allow continuous pacing of actively mobile mice in configurations suitable with CT and MRI mapping despite physical or operational deterioration (Fig.…”
Section: Medical Devices and Implantsmentioning
confidence: 99%
“…The process is iterated until the MEC achieves a desirable classification accuracy of the patient physiological analysis. Due to time-varying data quantity and channels, the energy consumption of the edge clients [6], [7] on data training and transmission can be greatly different from each other. Although scheduling the edge clients with a large dataset improves the learning accuracy of FL, analyzing large datasets rises energy consumption at the edge clients.…”
Section: Introductionmentioning
confidence: 99%