scholarly journals QoE-Oriented Mobile Edge Service Management Leveraging SDN and NFV

2017 ◽  
Vol 2017 ◽  
pp. 1-14 ◽  
Author(s):  
Shuping Peng ◽  
Jose Oscar Fajardo ◽  
Pouria Sayyad Khodashenas ◽  
Begoña Blanco ◽  
Fidel Liberal ◽  
...  
Keyword(s):  
Service Management ◽  
Mobile Network ◽  
Cost Effective ◽  
Reference Architecture ◽  
Channel State ◽  
Performance Requirements ◽  
Promising Solution ◽  
Effective Network ◽  
Lifecycle Management

5G envisages a “hyperconnected society” where trillions of diverse entities could communicate with each other anywhere and at any time, some of which will demand extremely challenging performance requirements such as submillisecond low latency. Mobile Edge Computing (MEC) concept where application computing resources are deployed at the edge of the mobile network in proximity of an end user is a promising solution to improve quality of online experience. To make MEC more flexible and cost-effective Network Functions Virtualisation (NFV) and Software-Defined Networking (SDN) technologies are widely adopted. It leads to significant CAPEX and OPEX reduction with the help of a joint radio-cloud management and orchestration logic. In this paper we discuss and develop a reference architecture for the orchestration and management of the MEC ecosystem. Along with the lifecycle management flows of MEC services, indicating the interactions among the functional modules inside the Orchestrator and with external elements, QoS management with a focus on the channel state information technique is presented.

Improving Quality of Experience of Subscribers through Post Deployment Network Planning in UMTS Cellular Networks

2012 ◽  
Vol 8 (3) ◽  
pp. 1-27
Author(s):  
Samir Kumar Sadhukhan ◽  
Swarup Mandal
Keyword(s):  
User Experience ◽  
Cellular Network ◽  
Quality Of Experience ◽  
Service Management ◽  
Cost Effective ◽  
Management Problem ◽  
Network Service ◽  
Heuristic Techniques ◽  
Effective Manner

It is an established fact that cost of churning is a common concern for being profitable in the cellular network service provider’s space. Service providers can view this problem as a service management problem and can have a solution to enhance the stickiness of subscribers by managing the quality of user experience. Quality of Experience (QoE) is important in contrast to Quality of Service (QoS). Three basic components of service management are stage, prop, and user experience. In this cellular network service context, network infrastructure acts as prop. Prop needs to be flexible to enable the personalization in providing the service. In reality the major challenge for a service provider is keep the fitment between prop and the dynamic changes in subscriber profile in a cost effective manner. To define the problem more precisely, the authors take the conventional UMTS cellular network. Here, operators have considered single-homing of RNCs to MSCs/SGSNs (i.e., many-to-one mapping) with an objective to generate service at lower cost over a fixed period of time. However, a single-homing network does not remain cost-effective and flexible anymore when subscribers later begin to show specific inter-MSC/SGSN mobility patterns over time. This necessitates post-deployment topological extension of the network in which some specific RNCs are connected to two MSCs/SGSNs via direct links resulting in a more complex many-to-two mapping structure in parts of the network. The authors formulate the scenario as a combinatorial optimization problem and solve the NP-Complete problem using three meta-heuristic techniques, namely Simulated Annealing (SA), Tabu search (TS), and Ant colony optimization (ACO). They then compare these techniques with a novel optimal heuristic search method that the authors propose typically to solve the problem. The comparative results reveal that the search-based method is more efficient than meta-heuristic techniques in finding optimal solutions quickly.

scholarly journals SDN Controlled mmWave Massive MIMO Hybrid Precoding for 5G Heterogeneous Mobile Systems

2016 ◽  
Vol 2016 ◽  
pp. 1-10 ◽  
Author(s):  
Na Chen ◽  
Songlin Sun ◽  
Michel Kadoch ◽  
Bo Rong
Keyword(s):  
Null Space ◽  
Radio Resource Management ◽  
Mobile Network ◽  
Mobile Systems ◽  
Radio Resource ◽  
Channel State ◽  
Hybrid Precoding ◽  
Sdn Controller ◽  
Domain Information

In 5G mobile network, millimeter wave (mmWave) and heterogeneous networks (Hetnets) are significant techniques to sustain coverage and spectral efficiency. In this paper, we utilize the hybrid precoding to overcome hardware constraints on the analog-only beamforming in mmWave systems. Particularly, we identify the complicated antenna coordination and vast spatial domain information as the outstanding challenges in mmWave Hetnets. In our work, we employ software defined network (SDN) to accomplish radio resource management (RRM) and achieve flexible spacial coordination in mmWave Hetnets. In our proposed scheme, SDN controller is responsible for collecting the user channel state information (CSI) and applying hybrid precoding based on the calculated null-space of victim users. Simulation results show that our design can effectively reduce the interference to victim users and support high quality of service.

Learning-Based Adaptive Management of QoS and Energy for Mobile Robotic Missions

2019 ◽  
Vol 13 (04) ◽  
pp. 513-539
Author(s):  
Dinh-Khanh Ho ◽  
Karim Ben Chehida ◽  
Benoit Miramond ◽  
Michel Auguin
Keyword(s):  
Autonomous Navigation ◽  
Robotic Systems ◽  
Energy Aware ◽  
Management Framework ◽  
Performance Requirements ◽  
Parameter Configuration ◽  
Mapping Parameter ◽  
Promising Solution ◽  
Robotic Missions

Mobile robotic systems are normally confronted with the shortage of on-board resources such as computing capabilities and energy, as well as significantly influenced by the dynamics of surrounding environmental conditions. This context requires adaptive decisions at run-time that react to the dynamic and uncertain operational circumstances for guaranteeing the performance requirements while respecting the other constraints. In this paper, we propose a reinforcement learning (RL)-based approach for Quality of Service QoS and energy-aware autonomous robotic mission manager. The mobile robotic mission manager leverages the idea of (RL) by monitoring actively the state of performance and energy consumption of the mission and then selecting the best mapping parameter configuration by evaluating an accumulative reward feedback balancing between QoS and energy. As a case study, we apply this methodology to an autonomous navigation mission. Our simulation results demonstrate the efficiency of the proposed management framework and provide a promising solution for the real mobile robotic systems.

Influence of mineral elements on the yield and quality of grain of the prospective line in winter tritikale

2020 ◽  
Author(s):  
I.N. Voronchikhina ◽  
◽  
A.G. Marenkova ◽  
V. S. Rubets ◽  
V. V. Pylnev
Keyword(s):  
Cost Effective ◽  
Mineral Elements ◽  
Early Spring ◽  
High Potential ◽  
Winter Triticale ◽  
Yield And Quality ◽  
Fertilizer System

The results of elements development of varietal agrotechnics of a new high-potential line 238h of winter triticale presented. It was identified that under the conditions of 2020 the most cost effective fertilizer system is an early spring application of NPK (S) (15-15-15 (10)) at a dose of 200kg/ha. The profitability level of this fertilizer was 88,9%.

Regulatory Issues in Pakistan Telecommunication

1998 ◽  
Vol 37 (4II) ◽  
pp. 873-882 ◽  
Author(s):  
Sarfaraz Khan Quershi
Keyword(s):  
National Economy ◽  
Cost Effective ◽  
Market Forces ◽  
Global Trends ◽  
Regulatory Issues ◽  
Competitive Price ◽  
Modern Services ◽  
A Company ◽  
Telecom Infrastructure

Growth in telecom infrastructure and provision of modern telecom services to consumers at a cost based tariff helps growth of national economy. Modern telecoms serve as the engine of growth of national economy. Following the global trends of liberalisation and deregulation in telecoms monopolies which have thus far been providing inefficient communication at a greedily high tariffs are falling apart. Mergers in telecoms are not for increasing the size of the monopoly but to provide more efficient and cost effective services to the consumers. In Pakistan the erstwhile T&T department played a needful role at its time. Conversion of the department into a corporation and then into a company were steps necessary for following the global trends. Need now is to continue this trend further, eliminate the monopolistic approach by allowing more players in the field thus permitting the market forces to decide the provision of better quality of modern services at competitive price.

Administrasi Layanan Khusus

2020 ◽  
Author(s):  
Haisya Hamini
Keyword(s):  
Learning Process ◽  
Teaching And Learning ◽  
School Health ◽  
Service Management ◽  
Educational Goals ◽  
Guidance And Counseling ◽  
School Based ◽  
Special Services ◽  
School Cafeterias

This article describes the administration of special services. The teaching and learning process requires the support of facilities that are not directly used in the classroom. Facilities that do not directly include school libraries, school cooperatives, school health businesses and school cafeterias. Management of special services in schools is effective and efficient School Based Management (SBM). School is one of the facilities that can be used to improve the quality of Indonesia's population. Schools not only have responsibilities and duties to carry out the learning process in developing science and technology, but must maintain and improve students' physical and spiritual health.Special service management in schools is basically defined and organized to facilitate or facilitate learning, and can meet the special needs of students at school. Special services are provided in schools with a view to facilitating the implementation of teaching in the context of achieving educational goals in schools. Special services include guidance and counseling, libraries, laboratories, school health efforts (uks), canteens, school cooperatives, and transportation.

A Sample Preparation on Decapsulation Methodology for Effective Failure Analysis on Thin Small Leadless (TSLP) Flip Chip Package with Copper Pillar (CuP) Bump Interconnect Technology

2014 ◽  
Author(s):  
Gwee Hoon Yen ◽  
Ng Kiong Kay
Keyword(s):  
Sample Preparation ◽  
Failure Analysis ◽  
Flip Chip ◽  
Fault Localization ◽  
Cost Effective ◽  
Fault Isolation ◽  
Voltage Contrast ◽  
Interconnect Technology

Abstract Today, failure analysis involving flip chip [1] with copper pillar bump packaging technologies would be the major challenges faced by analysts. Most often, handling on the chips after destructive chemical decapsulation is extremely critical as there are several failure analysis steps to be continued such as chip level fault localization, chip micro probing for fault isolation, parallel lapping [2, 3, 4] and passive voltage contrast. Therefore, quality of sample preparation is critical. This paper discussed and demonstrated a quick, reliable and cost effective methodology to decapsulate the thin small leadless (TSLP) flip chip package with copper pillar (CuP) bump interconnect technology.

Quality Improvement of the DNA extracted by boiling method in Gram negative bacteria

2017 ◽  
Vol 6 (04) ◽  
pp. 5347 ◽  
Author(s):  
Omar B. Ahmed* ◽  
Anas S. Dablool
Keyword(s):  
Dna Extraction ◽  
Control Method ◽  
Extraction Procedure ◽  
Cost Effective ◽  
High Yield ◽  
Gram Negative Bacteria ◽  
Bacterial Dna ◽  
Gram Negative ◽  
E Coli

Several methods of Deoxyribonucleic acid (DNA) extraction have been applied to extract bacterial DNA. The amount and the quality of the DNA obtained for each one of those methods are variable. The study aimed to evaluate bacterial DNA extraction using conventional boiling method followed by alcohol precipitation. DNA extraction from Gram negative bacilli was extracted and precipitated using boiling method with further precipitation by ethanol. The extraction procedure performed using the boiling method resulted in high DNA yields for both E. coli and K. pneumoniae bacteria in (199.7 and 285.7μg/ml, respectively) which was close to control method (229.3 and 440.3μg/ml). It was concluded that after alcohol precipitation boiling procedure was easy, cost-effective, and applicable for high-yield quality of DNA in Gram-negative bacteria.

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