Unstructured data gathered from various IoT sensors is rapidly increasing due to inexpensive electronic devices and high-speed networks. On the other hand, mobile edge computing (MEC) is an attractive data processing ...
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ISBN:
(数字)9783030027384
ISBN:
(纸本)9783030027384;9783030027377
Unstructured data gathered from various IoT sensors is rapidly increasing due to inexpensive electronic devices and high-speed networks. On the other hand, mobile edge computing (MEC) is an attractive data processing method that can shorten the communication distance and reduce the latency of computation-intensive tasks by distributing data to the edge servers close to the users, unlike processing data on clouds that are located far from users. In the present paper, we propose a specialized self-adaptive middleware for reconfiguration of image/video contents for adaptation to changes withthe movement of a vehicle. the key concept behind this approach is to introduce the rule-based relocation of objects among sensor devices, edge servers, and existing clouds as a basic adaptation mechanism to recognize and track mobile vehicles. Experimental results show that tracking precision with a state-of-the-art tracker is up to 89% for MEC.
Cloud computing technology achieves enormous scale by routing service requests from users to geographically distributed servers, typically located at different data centers. On one hand, energy consumption of data cen...
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Virtual machine is an emulation environment developed for dependable computing. Live migration mechanism provides the functionality that moves an ongoing virtual machine across hosts seamlessly so as to provide non-st...
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ISBN:
(数字)9783030027384
ISBN:
(纸本)9783030027384;9783030027377
Virtual machine is an emulation environment developed for dependable computing. Live migration mechanism provides the functionality that moves an ongoing virtual machine across hosts seamlessly so as to provide non-stop services. However, service quality cannot be satisfied if excessive pages are synchronized at the stop-and-copy phase. In this paper, a task-guided framework is proposed for live migration to start at an opportune time such that a short service downtime can be guaranteed. In our framework, a code entity which updates pages within a small range or in a low frequency is tagged. Once a tag has been detected, the coordinator either approves a pending live migration request or withdraws the permission to an ongoing live migration depending on the tag types. the prototype which is capable of task-guided live migration has been implemented. Our experiments show that boththe service downtime and the task execution time have been improved by our task-guided approach regardless of the possibly existing suspension overhead.
this paper analyses the smart grid’s facing challenges and the features of new energy source, then proposes the distributed frameworks for Cognitive Radio based Smart Grid (CRSG) on Home Area Network (HAN), on Neighb...
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the proceedings contain 105 papers. the special focus in this conference is on Communications and networking in China. the topics include: Energy-efficient resource allocation in energy harvesting communication system...
ISBN:
(纸本)9783319666273
the proceedings contain 105 papers. the special focus in this conference is on Communications and networking in China. the topics include: Energy-efficient resource allocation in energy harvesting communication systems;relay selection scheme for energy harvesting cooperative networks;dynamic power control for throughput maximization in hybrid energy harvesting node;power allocation algorithm for heterogeneous cellular networks based on energy harvesting;price-based power allocation in energy harvesting wireless cooperative networks;coverage and capacity optimization based on tabu search in ultra-dense network;dynamic APs grouping scheme base on energy efficiency in UUDN;virtual small cell selection schemes based on sum rate analysis in ultra-dense network;system level performance evaluation for ultra-dense networks;green distributed power control algorithm for multi-user cognitive radio networks;optimal channel selection and power control over D2D communications based cognitive radio networks;research on load balancing for software defined cloud-fog network in real-time mobile face recognition;applying topsis method for software defined networking (SDN) controllers comparison and selection;robust congestion control in NFVs and WSDNs with propagation delay and external interference;latency-aware reliable controller placements in SDNs;multiantenna based blind spectrum sensing via nonparametric test;blind spectrum sensing in cognitive radio using right anderson darling test;low-complexity MMSE signal detection based on WSSOR method for massive MIMO systems;channel characteristics and user QoS-aware handoff target spectrum selection in cognitive radio networks and energy efficiency of heterogeneous air-ground cellular networks.
distributed applications are composed of multiple objects and each object is replicated in order to increase reliability, availability, and performance. On the other hand, the larger amount of electric energy is consu...
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ISBN:
(纸本)9783319615660;9783319615653
distributed applications are composed of multiple objects and each object is replicated in order to increase reliability, availability, and performance. On the other hand, the larger amount of electric energy is consumed in a system since multiple replicas of each object are manipulated on multiple servers. In this paper, the energy efficient quorum selection (EEQS) algorithm is proposed to construct a quorum for each method issued by a transaction in the quorum based locking protocol so that the total electric energy consumption of servers to perform methods can be reduced. We show the total energy consumption of servers, the average execution time of each transaction, and the number of aborted transactions can be reduced in the EEQS algorithm compared withthe random algorithm in the evaluation.
the Smart City paradigm is progressively shaping the way we interact with other citizens, with institutions, as well as the way in which all kind of resources are managed in an urban setting. However, the high cost of...
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ISBN:
(纸本)9783319615424;9783319615417
the Smart City paradigm is progressively shaping the way we interact with other citizens, with institutions, as well as the way in which all kind of resources are managed in an urban setting. However, the high cost of dedicated sensing, computing and communication infrastructure, represents one of the main obstacles to the adoption of the Smart City paradigm in small cities and large, distributed districts, where resides the vast majority of the world population. In this paper we present a first implementation of a platform for nomadic sensing, which exploits the "moving infrastructure" of a city in order to implement the sensing, computing and communication functionalities required by smart city services, in a cost-effective way. this paper describes the architecture of the NOSE system, and the main lessons learned during the first steps of its implementation, deployment, and experimental validation. In particular, we show that the main technical challenges are due to the lack of devices conceived for reliable mobile operation (sensing, computing) and to the difficulty in achieving high levels of accuracy in measurements while moving.
Obesity can be classified as one of the most dangerous diseases in the world, as the number of obese people keeps on increasing. Obesity is related to many chronic diseases such as cancer, type 2 diabetes and heart di...
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ISBN:
(纸本)9783319751757;9783319751740
Obesity can be classified as one of the most dangerous diseases in the world, as the number of obese people keeps on increasing. Obesity is related to many chronic diseases such as cancer, type 2 diabetes and heart disease, also to many factors such as eating habits and inactivity. this last can be caused by people's addiction to Internet and especially social networks. this research introduces a new approach in the daily fight against obesity, by proposing a system that supports a community of overweight people, obese people, their families and friends, physicians, and anyone who might need help and support from this community or who can offer help to members of the community. In addition to the new system proposed a specific purpose social network to support this community was developed in order to help them discuss their problems, express their specific needs, share their experiences and motivate other members by sharing their experience with obesity ... etc.
Virtual reality technologies are promising to effectively enhance our daily experiences. Enhancing learning experiences with virtual reality technologies is one of important directions to make the technologies change ...
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ISBN:
(纸本)9784907626341
Virtual reality technologies are promising to effectively enhance our daily experiences. Enhancing learning experiences with virtual reality technologies is one of important directions to make the technologies change our daily lifestyle, because students in classes need not, gather together in the same location. However, virtual reality technologies offer plausible feeling to them residing in the same location. Students can attend their classes anytime anywhere from their mobile virtual reality (VR) devices, but they feel to take a class in the same class room. Moreover, virtual reality technologies can provide additional effects that cannot be realized in traditional real -world class rooms. the paper proposes VR Classroom that offers a virtual space where students and a teacher virtually, reside in the same location. VR Classroom also provides several features to motivate students through fictionality realized by virtual reality technologies. After describing an overview of VR Classroom, we show its prototype implementation and user study.
the proceedings contain 23 papers. the topics discussed include: Lerna: parallelizing dependent loops using speculation;chaperone - runtime system for instrumenting applications via partial binary translation;DLIRS: i...
ISBN:
(纸本)9781450358491
the proceedings contain 23 papers. the topics discussed include: Lerna: parallelizing dependent loops using speculation;chaperone - runtime system for instrumenting applications via partial binary translation;DLIRS: improving low inter-reference recency set cache replacement policy with dynamics;the quick migration of file servers;how to build an insecure system out of perfectly good cryptography;how to best share a big secret;Inkpack: a secure, data-exposure resistant storage system;seamless fail-over for PCIe switched networks;Memomania: from huge to huge-huge pages;collusion in cloud computing auctions;shared cloud object store, governed by permissioned blockchain;space efficient elephant flow detection;Hyplets - multi exception level kernel towards Linux RTOS;towards serverless NFV for 5G media applications;an intelligent recycle bin for smart cities;RestAssured: securing cloud analytics;efficient analytics on encrypted data;accelerating unmodified databases using persistent memory and flash storage tiers;PM aware storage engine for MongoDB;privacy enforcement at a large scale for GDPR compliance;Teechain: reducing storage costs on the blockchain with offline payment channels;applying deep learning to object store caching;and distributed fault-tolerant backup-placement in overloaded wireless sensor networks.
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