scholarly journals Architecture for IP-Based Next Generation Radio Access Network

2010 ◽  
pp. 61-76
Author(s):  
Ram Dantu ◽  
Parthasarathy Guturu
Keyword(s):  
Traffic Control ◽  
Access Network ◽  
Real Life ◽  
Next Generation ◽  
Dynamic Configuration ◽  
High Performing ◽  
Network Bandwidth ◽  
Radio Access ◽  
Real Life Data

High call volumes due to novel mobile data applications necessitate development of next generation wireless networks centered on high performing and highly available radio access networks (RANs). In this chapter, the authors present an innovative IP-based wireless routing architecture (for a RAN) with mechanisms for seamless handoff operations and high Quality of Service (QOS). Algorithms for dynamic configuration of the RAN, and efficacious network bandwidth management through traffic control are also presented. The authors establish the superiority of their system with real-life data indicating significant cost and availability improvements with our system over the traditional networks.

scholarly journals Cooperation and information replication in wireless networks

2016 ◽  
Vol 374 (2062) ◽  
pp. 20150123 ◽  
Author(s):  
Konstantinos Poularakis ◽  
Leandros Tassiulas
Keyword(s):  
Network Performance ◽  
Access Network ◽  
Network Architectures ◽  
Backbone Networks ◽  
Network Bandwidth ◽  
Multicast Service ◽  
Radio Access ◽  
Maximum Benefit ◽  
Wireless Medium ◽  
Cell Tower

A significant portion of today's network traffic is due to recurring downloads of a few popular contents. It has been observed that replicating the latter in caches installed at network edges—close to users—can drastically reduce network bandwidth usage and improve content access delay. Such caching architectures are gaining increasing interest in recent years as a way of dealing with the explosive traffic growth, fuelled further by the downward slope in storage space price. In this work, we provide an overview of caching with a particular emphasis on emerging network architectures that enable caching at the radio access network. In this context, novel challenges arise due to the broadcast nature of the wireless medium, which allows simultaneously serving multiple users tuned into a multicast stream, and the mobility of the users who may be frequently handed off from one cell tower to another. Existing results indicate that caching at the wireless edge has a great potential in removing bottlenecks on the wired backbone networks. Taking into consideration the schedule of multicast service and mobility profiles is crucial to extract maximum benefit in network performance.

BRAIN?an architecture for a broadband radio access network of the next generation

2001 ◽  
Vol 1 (1) ◽  
pp. 55-75 ◽  
Author(s):  
Josef Urban ◽  
Dave Wisely ◽  
Edgar Bolinth ◽  
Georg Neureiter ◽  
Mika Liljeberg ◽  
...  
Keyword(s):  
Access Network ◽  
Next Generation ◽  
Radio Access Network ◽  
Radio Access ◽  
Broadband Radio

Mining Calendar-based Periodic Patterns from Nonbinary Transactions

2014 ◽  
Vol 23 (3) ◽  
pp. 277-291 ◽  
Author(s):  
Jhimli Adhikari
Keyword(s):  
Real Life ◽  
Frequent Itemsets ◽  
Periodic Pattern ◽  
Temporal Data ◽  
Certainty Factor ◽  
Periodic Patterns ◽  
Business Decisions ◽  
Life Data ◽  
Real Life Data

AbstractA large class of problems deals with temporal data. Identifying temporal patterns in these datasets is a natural as well as an important task. In recent times, researchers have reported an algorithm for finding calendar-based periodic pattern in time-stamped data without considering the purchased quantities of the items. However, most of the real-life databases are nonbinary, and therefore, exploring various calendar-based patterns (yearly, monthly, weekly, daily) with their purchased quantities may discover information useful to improve the quality of business decisions. In this article, a technique is proposed to extract calendar-based periodic patterns from nonbinary transactions. In this connection, the concept of certainty factor has been introduced by incorporating transaction frequency for overlapped intervals. Algorithms have been designed to mine frequent itemsets along with intervals and quantity. In addition to that, we have designed an algorithm to find the periodicity of the pattern. The algorithm is tested with real-life data, and the results are given.

Use of Traffic Separation Techniques for the Transport of HSPA and R99 Traffic in the Radio Access Network with Differentiated Quality of Service

2010 ◽  
pp. 863-878
Author(s):  
Xi Li ◽  
Yasir Zaki ◽  
Thushara Weerawardane ◽  
Andreas Timm-Giel ◽  
Carmelita Görg ◽  
...  
Keyword(s):  
Quality Of Service ◽  
Potential Benefit ◽  
Access Network ◽  
Significant Gain ◽  
Bandwidth Utilization ◽  
Radio Access Network ◽  
Radio Access ◽  
Maximum Utilization ◽  
Quantitative Evaluations

This article presents various traffic separation approaches to transmit HSPA (HSDPA/HSUPA) traffic in the existing ATM-based UMTS Radio Access Network, together with Release 99 (R99) traffic. The traffic separation technique enables QoS differentiations of HSPA and R99 traffic, while aiming to achieve a maximum utilization of the transport resources in the radio access network. The potential benefit of applying traffic separation and its impact on the performance of the transport network as well as the end users are explored in this article. The quantitative evaluations are provided by simulations. The results presented are obtained from a UMTS simulation model developed in this work which can transmit HSDPA and HSUPA traffic as well as R99 traffic simultaneously. The presented results demonstrate that applying traffic separation between HSPA and R99 traffic can considerably improve the performance of both HSPA and R99 traffic, and as well bring significant gain on efficient bandwidth utilization.

scholarly journals Obtaining More Realistic Cross-Layer QoS Measurements: A VoIP over LTE Use Case

2013 ◽  
Vol 2013 ◽  
pp. 1-10 ◽  
Author(s):  
F. Javier Rivas ◽  
Almudena Díaz ◽  
Pedro Merino
Keyword(s):  
Quality Of Experience ◽  
Access Network ◽  
Added Value ◽  
Cross Layer ◽  
Use Case ◽  
Lte Networks ◽  
Testing Environment ◽  
Radio Access ◽  
Open Issue

We introduce a real-time experimentation testbed in this paper which enables more realistic analysis of quality of service (QoS) in LTE networks. This testbed is envisioned for the improvement of QoS and quality of experience (QoE) through the experimentation with real devices, services, and radio configurations. Radio configurations suggested in the literature typically arise from simulations; the testbed provides a real and controlled testing environment where such configurations can be validated. The added value of this testbed goes a long way not only in the provision of more realistic results but also in the provision of QoS and QoE cross-layer measurements through the correlation of information collected at different layers: from service and IP levels to radio and protocol parameters. Analyzing the interlayer dependencies will allow us to identify optimal settings for the radio access network and service parameters. This information can be used to suggest new cross-layer optimizations to further improve quality of experience of mobile subscribers. As a use case, we examine VoIP service over LTE, which is currently an open issue.

scholarly journals 1533P Real-life data from the platform for outcome, quality of life and translational research on pancreatic cancer - PARAGON

2020 ◽  
Vol 31 ◽  
pp. S943
Author(s):  
S-E. Al-Batran ◽  
W. Blau ◽  
R. Liersch ◽  
S. Mahlmann ◽  
A. Lueck ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Pancreatic Cancer ◽  
Translational Research ◽  
Real Life ◽  
Outcome Quality ◽  
Life Data ◽  
Real Life Data

Quality of Service on Link Aggregation Network Virtualization for Docker Containers

2019 ◽  
Vol 886 ◽  
pp. 227-232
Author(s):  
Yanapat Chuchuen ◽  
Kritwara Rattanaopas ◽  
Sarapee Chunkaew
Keyword(s):  
Traffic Control ◽  
Load Balance ◽  
High Speed ◽  
Large Scale ◽  
Network Virtualization ◽  
Network Bandwidth ◽  
Working Together ◽  
Multiple Network ◽  
Implementation Tool

Docker engine is an extremely powerful tool for PaaS platform of cloud computing. It gives benefits for large-scale of internet services. Web service is basic service for everyone who requires to access internet that web infrastructure must has scalability with load-balance web server called reverse proxy. The key answers for a large-scale web must have multiple web servers working together with high speed bandwidth. Moreover, multiple clusters can find in the same data center there are required to assign priority and quality of each cluster service. We investigate load-balance assign link aggregation with network QoS by using pipework script and traffic control tool in frontend reverse proxy server on each cluster. Our research evaluates scenario of network QoS ratios which include 50/50, 60/40, 70/30 and 80/20. We compare network bandwidth between both web reverse proxy clusters. The results present our designed and implementation tool not only can control network QoS on each web reverse proxy cluster in all load-balance link aggregation modes which include round-robin, XOR and ALB but also those of clusters can access multiple network interface. In experiment, average network bandwidths in all QoS cases are around 200 MB per second for link aggregation of 2 gigabit interface.

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