scholarly journals The Energy Intensity of the Internet: Home and Access Networks

2014 ◽  
pp. 137-155 ◽  
Author(s):  
Vlad C. Coroama ◽  
Daniel Schien ◽  
Chris Preist ◽  
Lorenz M. Hilty
Keyword(s):  
Energy Intensity ◽  
Access Networks ◽  
The Internet

Analysis of VoIP Traffic over the IEEE 802.16 Protocol

2014 ◽  
pp. 239-259
Author(s):  
Luis Ortiz ◽  
Victor Rangel ◽  
Javier Gomez ◽  
Miguel Lopez-Guerrero
Keyword(s):  
Theoretical Model ◽  
Access Network ◽  
Ieee 802.16 ◽  
Access Networks ◽  
Mobile Systems ◽  
Wireless Access ◽  
The Internet ◽  
Broadband Wireless ◽  
Wireless Access Network ◽  
Radio Resources

Voice over Internet Protocol (VoIP) is one of the fastest growing applications for the Internet today and is a very important service because mobile users can utilize voice services more cheaply compared with most mobile systems. A crucial application over these networks is VoIP over the Worldwide Interoperability for Microwave Access (WiMAX), which is one of the technologies in Broadband Access Networks based on IEEE 802.16 standards. It provides high throughput broadband connections over long distances, which supports Point to Multi-Point (PMP) wireless access. A hurdle, however, is the number of voice connections that can be supported. Since VoIP requires short end-to-end delays, supporting as many VoIP users as possible in a mobile broadband wireless access network, considering limited radio resources, becomes a very important issue. In this chapter, the authors use a theoretical model and an algorithm to evaluate the performance of some of the most important VoIP codecs.

scholarly journals Approaches to energy intensity of the internet

2014 ◽  
Vol 52 (11) ◽  
pp. 130-137 ◽  
Author(s):  
Dan Schien ◽  
Chris Preist
Keyword(s):  
Energy Intensity ◽  
The Internet

scholarly journals Economic Features of the Internet and Network Neutrality

2016 ◽  
pp. 809-822
Author(s):  
Nicholas Economides
Keyword(s):  
The United States ◽  
Utility Functions ◽  
Access Networks ◽  
The Internet ◽  
Network Neutrality ◽  
Broadband Access ◽  
Broadband Access Networks ◽  
Total Surplus ◽  
Short Run ◽  
Bandwidth Expansion

The chapter discusses the issue of a possible abolition of network neutrality and the introduction of paid prioritization by residential broadband access networks. In short-run analysis where bandwidth is fixed and in the absence of congestion, network neutrality tends to maximize total surplus. When an ISP violates network neutrality and invests the extra profits to bandwidth expansion, the presence of more bandwidth alleviates the allocative distortion, and can even reverse it. The chapter discusses the network neutrality issue under the assumption of congestion, and characterizes the set of utility functions for which network neutrality is optimal, as well as utility functions where it is optimal to prioritize. The chapter also reviews regulatory rules in the United States on network neutrality.

ADVANTAGES OF AMOOFDM SYSTEM OVER OTHERTECHNOLOGIES: A REVIEW

2020 ◽  
Author(s):  
Х. Язбек ◽  
В.В. Беляев ◽  
И.М. Ткаченко
Keyword(s):  
Radio Wave ◽  
Semiconductor Optical Amplifier ◽  
Optical Amplifier ◽  
Access Networks ◽  
The Internet ◽  
Internet Service ◽  
Significant Percentage ◽  
Fiber To The Home ◽  
Frequency Multiplexing ◽  
The Cost

В настоящее время желание клиентов получить более высокую скорость доступа и снизить стоимость услуг за- ставляет операторов постоянно развивать свои сети. Кроме того, операторы вынуждены увеличивать размеры сетей доступа, чтобы обслужить как можно больше домохозяйств, охватить весь город, район крупного города или его окрестности в радиусе до 60 км. Также остаются актуальными проблемы ограниченного количества сервисов сети, недостаточной зоны покрытия и слишком высокой стоимости услуг для среднего абонента. Довольно много сетей все еще используют наземную беспроводную связь для организации каналов внутри или между городскими кварталами, но есть и операторы, которые используют технологию FTTH (оптоволокно до дома). В статье сравниваются производительность, пропускная способность и максимальный размер действующих сетей доступа и перспективных сетей, использующих адаптивно-модулированное оптическое ортогональное частотное мультиплексирование (AMOOFDM). Также показаны преимущества системы AMOOFDM, в которой в качестве модулятора интенсивности применяется полупроводниковый оптический усилитель. Access networks are under constant development looking for customers satisfaction by enhancing the Internet service speed and the cost of the service. However, a significant percentage of these networks still using the terrestrial radio wave telecommunications to distribute the service inside or between city blocks, while others use the fiber to the home (FTTH). The article compares the performance of the currently operated access networks to the adaptively modulated optical orthogonal frequency multiplexing (AMOOFDM) based access networks, according to the bit-rate, and the distance reach of these networks. The advantages of the AMOOFDM system, in which a semiconductor optical amplifier (SOA) is used as an intensity modulator, are shown.

Next Generation Mobile Internet – Network and Service PlatformDie nächste Generation des mobilen Internet – Netz- und Serviceplattform

2009 ◽  
Vol 50 (6) ◽  
Author(s):  
Wolfgang Kellerer ◽  
Jörg Widmer ◽  
Hendrik Berndt
Keyword(s):  
Web Services ◽  
Mobile Devices ◽  
Mobile Internet ◽  
Access Networks ◽  
Wireless Access ◽  
The Internet ◽  
Network Technology ◽  
Wireless Access Networks ◽  
Next Generation ◽  
Internet Infrastructure

AbstractThe Internet has become the main network technology supporting communications and Web services in all areas of our society. In order to perform this role efficiently, a fundamental redesign of the Internet architecture is being discussed. In particular, mobile devices and wireless access networks will constitute an important part of the Internet infrastructure. Based on a general discussion of requirements, this article focuses on the challenges of a next generation mobile Internet and discusses research approaches for mobility, addressing, heterogeneous access, and service platforms.

scholarly journals The Energy Intensity of the Internet: Edge and Core Networks

2014 ◽  
pp. 157-170 ◽  
Author(s):  
Daniel Schien ◽  
Vlad C. Coroama ◽  
Lorenz M. Hilty ◽  
Chris Preist
Keyword(s):  
Energy Intensity ◽  
The Internet ◽  
Core Networks

The Case for Open Access Networks

2011 ◽  
pp. 192-203
Author(s):  
Don Flournoy ◽  
Rolland LeBrasseur ◽  
Sylvie Albert
Keyword(s):  
Open Access ◽  
Open Source ◽  
Access Networks ◽  
Public Utility ◽  
Global Perspective ◽  
The Internet ◽  
Net Neutrality ◽  
Technical Standards ◽  
Broadband Internet ◽  
National Governments

Efforts to keep the broadband Internet a free and open public utility are much in the news. In the context of the Network Society, the authors examine some of the publicly stated arguments and positions being taken in the articulation of “net neutrality” and “open source” practices and principles. The article explores the difficult technical challenges present in maintaining “open access” telecommunications networks using proprietary technologies. From a global perspective, industry groups have strong incentives to work together to adopt universal technical standards. With more open technical standards, open source applications and products can be accelerated and made more pervasive. Collaboration among businesses, national governments, and public sectors are seen as key to implementing policies that lead to public participation in economic and social development both locally and globally. The principal means by which all these approaches can be sustained is to keep the Internet accessible, free and open for all.

Routing and Self-organization in IP based Wireless Access Networks (Routing und Selbstorganisation in drahtlosen IP-basierten Zugangsnetzen)

2006 ◽  
Vol 48 (5) ◽  
Author(s):  
Oliver Stanze ◽  
Kilian Alexander Weniger ◽  
Martina Zitterbart ◽  
Stefan Aust ◽  
Nico Bayer ◽  
...  
Keyword(s):  
Ad Hoc Networks ◽  
Mobile Ad Hoc Networks ◽  
Ad Hoc ◽  
Access Networks ◽  
Wireless Access ◽  
Self Organization ◽  
The Internet ◽  
Wireless Access Networks ◽  
Mobile Ad Hoc ◽  
Hoc Networks

The BMBF project IPonAir addressed the integration of different wireless access systems with the Internet. This article gives a short overview of some of the project results in the area of mobile ad hoc networks (MANETs) and the integration of these networks with the Internet.

scholarly journals Whole Scenario of 5G Communication Access in the Digital Transformation of Medium and Large Enterprises

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Yi Yang ◽  
Zhichao Yan ◽  
You Xiao
Keyword(s):  
Random Access ◽  
Digital Transformation ◽  
Access Networks ◽  
Wireless Access ◽  
The Internet ◽  
Wireless Access Networks ◽  
Throughput Rate ◽  
Innovation Activities ◽  
Normalized Throughput ◽  
5G Communication

With the evolution and upgrading of the fifth-generation mobile communication technology, the mobile network will support a larger mobile user group and more diverse business scenarios, greatly enhance the Internet service experience, and fully support IoT-aware applications. As the forefront of the Internet of Everything, the wireless access network plays an important role in the evolution of the network. The continuous innovation of a new generation of information technology, especially the application of technologies such as big data, cloud computing, artificial intelligence, and the Internet of Things, has triggered an upsurge in the digital transformation of enterprises. Digital transformation has had a profound impact on the production and operation activities of enterprises and has also changed the organization and management of enterprise innovation activities. From the perspective of the innovation ecosystem, the digital transformation of a single enterprise leads to changes in innovation activities, which will converge and emerge new characteristics at the system level. The purpose of this article is to study the full scenarios of 5G communication access in the digital transformation of medium and large enterprises. This article starts with the development trend of wireless access networks, analyzes network slicing technologies in detail, and points out that wireless access networks are moving towards 5G. Important challenges are faced in the development of the times. Based on the adaptive random access model proposed in this paper, a feedback adaptive optimization method is proposed. This method estimates the real access load through feedback and calculates the access threshold through the access load. Then, broadcast the threshold value to each user equipment through downlink broadcast. The results show that the normalized throughput rate of random access methods using AC-RACH and FC-RACH is higher than that of RA-RACH. Especially, when the arrival rate of user requests is getting higher and higher, the throughput rate of RA-RACH access will continue to decrease with the collision until it approaches zero. By comparing the key data of normalized throughput rate and access success rate, it is concluded that the feedback adaptive method has a significant performance improvement under heavy load conditions compared with the previous method.

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