Senin, 10 Januari 2011

[L319.Ebook] Download The Performance of WiFi Offload in LTE Networks: (Long Term Evolution), by Desta Haileselassie Hagos

Download The Performance of WiFi Offload in LTE Networks: (Long Term Evolution), by Desta Haileselassie Hagos

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The Performance of WiFi Offload in LTE Networks: (Long Term Evolution), by Desta Haileselassie Hagos

The Performance of WiFi Offload in LTE Networks: (Long Term Evolution), by Desta Haileselassie Hagos



The Performance of WiFi Offload in LTE Networks: (Long Term Evolution), by Desta Haileselassie Hagos

Download The Performance of WiFi Offload in LTE Networks: (Long Term Evolution), by Desta Haileselassie Hagos

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The Performance of WiFi Offload in LTE Networks: (Long Term Evolution), by Desta Haileselassie Hagos

Currently, cellular networks are overloaded with mobile data traffic due to the rapid growth of mobile broadband subscriptions. The combination of Smartphones such as iPhones, netbooks and 3G/4G mobile networks are rapidly growing in very large numbers and as a result, this has created an exceptional demand for ubiquitous connectivity and quality of rich digital content and applications. To meet the requirements of future data-rich applications and terminals with improved multimedia, future wireless networks are expected to combine multiple access technologies and as a result mobile broadband operators are including WLANs like WiFi as an alternative access network technology. This enables solutions to offload traffic from the primary access technology to the WiFi access when applicable so as to provide extra capacity and improve overall performance. By offloading, it means that using alternative network technologies for delivering data originally targeted for e.g. cellular networks when it becomes saturated or when it exceeds its capability. In this work novel offloading algorithms are proposed and implemented, that decides when to move flow(s) between LTE and WiFi access networks.

  • Sales Rank: #5695662 in Books
  • Published on: 2012-03-23
  • Original language: English
  • Number of items: 1
  • Dimensions: 8.66" h x .41" w x 5.91" l, .60 pounds
  • Binding: Paperback
  • 180 pages

About the Author
The author received his BSc degree in Computer Science from Mekelle University. From October 2004 to August 2009, he has worked as Grad. Assist. & as an Assist. Lecturer at Mekelle University. He obtained his MSc Degree in Mobile Systems from Lule� University of Technology, Dept. of Computer Science Electrical and Space Engineering in January 2012.

Most helpful customer reviews

2 of 2 people found the following review helpful.
Excellent introduction to 3GPP approach to WiFi offload
By R. Brough Turner
This book provides a thorough and very readable explanation the mobile industry's approach to WiFi offload. Yes the book is specialized and thus expensive, but I haven't seen this information in this straight forward a form anywhere else. Of course the actual standards documents are free from the 3GPP's website, but that is a very difficult and tedious way to learn the field.

The text is Mr. Hagos's January 2012 Master's thesis at Lule� University of Technology in Sweden, although the actual work was done by Mr. Hagos while at Ericsson Research. The first three chapters (98 pages) present the overview that I particularly appreciated.

The remaining 50 pages present the results of multiple offload simulations, which constitute the essential research of this thesis. While undoubtedly interesting to the folks at Ericsson Research, such simulations are critically dependent on initial assumptions and thus less interesting to me. Perhaps the thinking was operators would be deploying this WiFi infrastructure. In any event, WiFi connection opportunities seemed low to me. At least among professionals in the US, most people are sitting in the midst of good WiFi coverage most of the day (either at work or at home). It's privately owned WiFi infrastructure and handoffs are not seamless (today), but it's there, it's usually fast and there are no caps on data usage.

In any event, Chapter 3 has a good explanation of what 3GPP provides in the way of seamless handover, support for splitting traffic between private WiFi and 3G/4G and the 3GPP approach for offloading Internet traffic from the mobile core network.

If you want to understand the mobile industry approach to WiFi offload, read the first three chapters of this book.

0 of 0 people found the following review helpful.
Excellent manuscript on Performance of WiFi Offload in LTE Networks
By Martin A.
This manuscript evaluates the Performance of WiFi Offload schemes in LTE Networks and it proposed a WiFi offloading scheme to jointly serve mobile users in LTE networks. I have not finished reading it yet, but I wanted to share my impressions from what I read so far. The presented work is interesting and easy to follow. The research problem is well introduced and defined. A thorough analysis based on three individual offloading strategies with extensive simulation data is provided.

Highly recommended for those out there trying to make sense of a concise summary of the 3GPP standards related to 3GPP and non-3GPP access technologies (for example, LTE and WiFi), the EPC, mobility management and multi-mode access network selection, IP Flow Mobility with Seamless offload which are comprehensively explained in chapter two and chapter three of the manuscript.

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