scholarly journals A Fuzzy Logic System for Vertical Handover and Maximizing Battery Lifetime in Heterogeneous Wireless Multimedia Networks

2019 ◽  
Vol 2019 ◽  
pp. 1-13 ◽  
Author(s):  
Thiago Coqueiro ◽  
José Jailton ◽  
Tássio Carvalho ◽  
Renato Francês
Keyword(s):  
Fuzzy Logic ◽  
Mobile Devices ◽  
Mobile Networks ◽  
Vertical Handover ◽  
Multimedia Networks ◽  
Wireless Multimedia ◽  
Battery Lifetime ◽  
Intelligent Decision Making ◽  
Battery Capacity ◽  
Continuous Use

Bandwidth and power hungry applications are proliferating in mobile networks at a rapid pace. However, mobile devices have been suffering from a lack of sufficient battery capacity for the intensive/continuous use of these applications. In addition, the mobile ecosystem is currently heterogeneous and comprises a plethora of networks with different technologies such as LTE, Wi-Fi, and WiMaX. Hence, an issue must be addressed to ensure that quality of experience (QoE) is provided for the users in this scenario: an energy-efficient strategy that is designed to extend the battery lifetime of mobile devices. This paper proposes an architecture which provides an intelligent decision-making support system based on Fuzzy Logic for saving the energy of mobile devices within an integrated LTE and Wi-Fi network. The simulated experiments show the benefits of the solution this architecture can provide by using QoE metrics.

scholarly journals Artificial intelligence in mobile communication: A Survey

2022 ◽  
Vol 1212 (1) ◽  
pp. 012046
Author(s):  
Yingchi Mao ◽  
Andri Pranolo ◽  
Leonel Hernandez ◽  
Aji Prasetya Wibawa ◽  
Zalik Nuryana
Keyword(s):  
Artificial Intelligence ◽  
Neural Networks ◽  
Fuzzy Logic ◽  
Reinforcement Learning ◽  
Wireless Communication ◽  
Mobile Devices ◽  
Mobile Communication ◽  
Mobile Networks ◽  
Sixth Generation

Abstract In this paper, we elaborate on artificial intelligence (AI) techniques used to improve the performance of mobile communication. This article describes brief AI approaches in mobile communication, several classics AI techniques, and the current AI approaches in wireless communication. The techniques contain fuzzy logic, neural networks, reinforcement learning, and AI techniques implemented on mobile communication. Some keys or terms challenges between AI and future mobile communication, not only 5G generation issues but also how the sixth generation (6G) of mobile networks will be driven to give stable networks and service types on huge mobile devices and data.

Dynamic Voltage Scaling Algorithm for Battery Powered System with Discrete Voltages

2013 ◽  
Vol 316-317 ◽  
pp. 136-140
Author(s):  
Shen Xu ◽  
Wen Shu Li ◽  
Jun Song Li
Keyword(s):  
Mobile Devices ◽  
Control Parameter ◽  
Voltage Scaling ◽  
Dynamic Voltage Scaling ◽  
Discharge Characteristic ◽  
Battery Lifetime ◽  
Battery Capacity ◽  
Dynamic Voltage ◽  
Simulation Results ◽  
Battery Discharge

Battery lifetime has become one of the key control parameter of mobile devices design. Maximizing battery lifetime is a difficult task because of both the nonlinear for battery capacity consumption and the correlation between capacity consumption and battery load. In this paper we address the problem how Dynamic Voltage Scaling (DVS) policy optimizes battery utilization according to battery discharge characteristic for the discrete voltage systems. We analyze the battery discharge characteristic and find that the whole battery discharge takes on a linear discharge phase and a nonlinear discharge phase successively. The proposed DVS policy utilizes different methods to generate the voltage schedule during the different discharge phases. Simulation results show that the policy can effectively reduce battery capacity consumption and increase the workload performed during the battery lifetime.

Power Saving in Wireless Multimedia Streaming to Mobile Devices

2011 ◽  
pp. 183-202
Author(s):  
Gabriel-Miro Muntean ◽  
Janet Adams
Keyword(s):  
Wireless Communication ◽  
Mobile Devices ◽  
Wireless Lan ◽  
Power Saving ◽  
Multimedia Streaming ◽  
Multimedia Content ◽  
Wireless Multimedia ◽  
Battery Lifetime ◽  
Buffer Power ◽  
Major Disadvantage

Wireless networks are becoming a part of everyday life for many people. When a mobile device has wireless LAN capability, multimedia content can be streamed over a wireless network to that device. However, a major disadvantage of all mobile devices is their limited battery lifetime. Multimedia streaming puts extra pressure on the battery, causing it to discharge faster. In some cases, streaming tasks cannot be completed purely because the battery of the device becomes fully discharged, which causes significant user dissatisfaction. This chapter describes adaptive buffer power save mechanism (AB-PSM), a novel power saving wireless communication solution that enables an increase in battery lifetime during mobile multimedia streaming.

Cell-oriented adaptive admission control for QoS support in wireless multimedia networks

2000 ◽  
Vol 36 (21) ◽  
pp. 1826 ◽  
Author(s):  
Jae Young Lee ◽  
Saewoong Bahk ◽  
Seong-Cheol Kim
Keyword(s):  
Admission Control ◽  
Multimedia Networks ◽  
Wireless Multimedia

scholarly journals Context-Aware Community Construction in Proximity-Based Mobile Networks

2015 ◽  
Vol 2015 ◽  
pp. 1-18 ◽  
Author(s):  
Na Yu ◽  
Qi Han
Keyword(s):  
Social Networking ◽  
Mobile Devices ◽  
Mobile Networks ◽  
Context Aware ◽  
Two Phase ◽  
Space And Time ◽  
Shared Information ◽  
Influence Graph ◽  
Social Applications ◽  
Share Information

Sensor-equipped mobile devices have allowed users to participate in various social networking services. We focus on proximity-based mobile social networking environments where users can share information obtained from different places via their mobile devices when they are in proximity. Since people are more likely to share information if they can benefit from the sharing or if they think the information is of interest to others, there might exist community structures where users who share information more often are grouped together. Communities in proximity-based mobile networks represent social groups where connections are built when people are in proximity. We consider information influence (i.e., specify who shares information with whom) as the connection and the space and time related to the shared information as the contexts. To model the potential information influences, we construct an influence graph by integrating the space and time contexts into the proximity-based contacts of mobile users. Further, we propose a two-phase strategy to detect and track context-aware communities based on the influence graph and show how the context-aware community structure improves the performance of two types of mobile social applications.

scholarly journals Analysis of State-of-the-Art Spin-Transfer-Torque Nonvolatile Flip-Flops Considering Restore Yield in the Near/Sub-Threshold Voltage Region

Electronics ◽  
2020 ◽  
Vol 9 (12) ◽  
pp. 2118
Author(s):  
Gwang Hui Choi ◽  
Taehui Na
Keyword(s):  
Threshold Voltage ◽  
State Of The Art ◽  
Spin Transfer Torque ◽  
Spin Transfer ◽  
Model Parameters ◽  
Offset Cancellation ◽  
Battery Lifetime ◽  
Battery Capacity ◽  
Iot Devices ◽  
Voltage Region

Recently, the leakage power consumption of Internet of Things (IoT) devices has become a main issue to be tackled, due to the fact that the scaling of process technology increases the leakage current in the IoT devices having limited battery capacity, resulting in the reduction of battery lifetime. The most effective method to extend the battery lifetime is to shut-off the device during standby mode. For this reason, spin-transfer-torque magnetic-tunnel-junction (STT-MTJ) based nonvolatile flip-flop (NVFF) is being considered as a strong candidate to store the computing data. Since there is a risk that the MTJ resistance may change during the read operation (i.e., the read disturbance problem), NVFF should consider the read disturbance problem to satisfy reliable data restoration. To date, several NVFFs have been proposed. Even though they satisfy the target restore yield of 4σ, most of them do not take the read disturbance into account. Furthermore, several recently proposed NVFFs which focus on the offset-cancellation technique to improve the restore yield have obvious limitation with decreasing the supply voltage (VDD), because the offset-cancellation technique uses switch operation in the critical path that can exacerbate the restore yield in the near/sub-threshold region. In this regard, this paper analyzes state-of-the-art STT-MTJ based NVFFs with respect to the voltage region and provides insight that a simple circuit having no offset-cancellation technique could achieve a better restore yield in the near/sub-threshold voltage region. Monte–Carlo HSPICE simulation results, using industry-compatible 28 nm model parameters, show that in case of VDD of 0.6 V, complex NVFF circuits having offset tolerance characteristic have a better restore yield, whereas in case of VDD of 0.4 V with sizing up strategy, a simple NVFF circuit having no offset tolerance characteristic has a better restore yield.

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