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  • 2015_01_3GPP_unlicensed_Dino_Flore

    Licensed spectrum remains 3GPP operators’ top priority to deliver advanced services and user experience Opportunistic use of unlicensed spectrum is becoming an important complement for operators to meet the growing traffic demand Moving forward 3GPP operators will have two options to offload traffic to unlicensed spectrum: 1. Wi-Fi (via LTE/Wi-Fi interworking) 2. LTE over unlicensed It will then be up to each individual operator to choose which approach to use, which will depend on a number of factors

    標簽: 3GPP_unlicensed_Dino_Flore 2015 01

    上傳時間: 2020-05-26

    上傳用戶:shancjb

  • GSM+and+UMTS+The+Creation+of+

    This book describes how global mobile communication was made. It is written for those who want or need to know how this was achieved e.g.: ? Young professionals who want to build their career on GSM and UMTS and need to understand the basics ? Strategic and technical planners who want to drive the future GSM and UMTS develop- ment ? Strategists who plan to repeat GSM’s success in the fourth generation ? Academics, who want to understand and analyse the development of GSM and UMTS; ? Activists in other large scale international communication projects who want to use experiences gained

    標簽: Creation UMTS GSM and The of

    上傳時間: 2020-05-27

    上傳用戶:shancjb

  • Interactivity+in+Social+Media

    When digital media is perceived only as a tool to deliver content the potential for using its affordances to explore meaning is lost. Rather than seeing media only as an access point, we can view it as a way to enhance the expressiveness of content. Today blogs, wikis, messaging, mash-ups, and social media (Facebook, Twitter, YouTube and others) offer authors ways to create narrative meaning that refl ects our new media culture. We can look to the past for similarities and parallels to better understand how to use social media as a creative tool with which to dialogue, collaborate, and create interactive narratives.

    標簽: Interactivity Social Media in

    上傳時間: 2020-05-27

    上傳用戶:shancjb

  • Mobile+and+Wireless+Design+Essentials

    Mobile and wireless application development has come a long way in the past few years. It has progressed beyond the hype of wireless Web applications for consumers to the reality of high-value mobile applications for corporate users. Opportunities abound for creating new mobile and wireless applications that provide vital benefits to any business. A sampling of these benefits includes increased worker productivity, reduced processing costs, heightened accuracy, and competitive advantage. In contrast is the concern that developing mobile and wireless applications will involve many new technologies and concepts that many corporate developers are still learning to use.

    標簽: Essentials Wireless Mobile Design and

    上傳時間: 2020-05-30

    上傳用戶:shancjb

  • Modeling and Tools for Network Simulation

    In general there are three different techniques for performance evaluation of systems and networks: mathematical analysis, measurements, and computer simulation. All these techniques have their strength and weaknesses. In the literature there are plenty of discussions about when to use which technique, how to apply it, and which pitfalls are related to which evaluation technique.

    標簽: Simulation Modeling Network Tools and for

    上傳時間: 2020-05-31

    上傳用戶:shancjb

  • Queueing Theory with Packet Telecommunication

    Soon after Samuel Morse’s telegraphing device led to a deployed electri- cal telecommunications system in 1843, waiting lines began to form by those wanting to use the system. At this writing queueing is still a significant factor in designing and operating communications services, whether they are provided over the Internet or by other means, such as circuit switched networks.

    標簽: Telecommunication Queueing Packet Theory with

    上傳時間: 2020-05-31

    上傳用戶:shancjb

  • Short-range+Wireless+Communication

    Developers, manufacturers and marketers of products incorporating short- range radio systems are experts in their fields—security, telemetry, medical care, to name a few. Often they add a wireless interface just to eliminate wires on an existing wired product. They may adapt a wireless subsystem, which is easy to integrate electrically into their system, only to find that the range is far short of what they expected, there are frequent false alarms, or it doesn’t work at all. It is for these adapters of wireless subsystems that this book is primarily intended.

    標簽: Communication Short-range Wireless

    上傳時間: 2020-06-01

    上傳用戶:shancjb

  • Utility Maximization in Nonconvex Wireless Systems

    Once upon a time, cellular wireless networks provided two basic services: voice telephony and low-rate text messaging. Users in the network were separated by orthogonal multiple access schemes, and cells by generous frequency reuse patterns [1]. Since then, the proliferation of wireless services, fierce competition, andthe emergenceof new service classes such as wireless data and multimediahave resulted in an ever increasing pressure on network operators to use resources in a moreefficient manner.In the contextof wireless networks,two of the most common resources are power and spectrum—and, due to regulations, these resources are typically scarce. Hence, in contrast to wired networks, overprovisioning is not feasible in wireless networks.

    標簽: Maximization Nonconvex Wireless Utility Systems in

    上傳時間: 2020-06-01

    上傳用戶:shancjb

  • Visible Light Communication

    Visible light communications (VLC) is the name given to an optical wireless communication system that carries information by modulating light in the visible spectrum (400–700 nm) that is principally used for illumination [1–3]. The communications signal is encoded on top of the illumination light. Interest in VLC has grown rapidly with the growth of high power light emitting diodes (LEDs) in the visible spectrum. The motivation to use the illumination light for communication is to save energy by exploiting the illumination to carry information and, at the same time, to use technology that is “green” in comparison to radio frequency (RF) technology, while using the existing infrastructure of the lighting system. 

    標簽: Communication Visible Light

    上傳時間: 2020-06-01

    上傳用戶:shancjb

  • Programming Your Hom

    Welcome to the exciting, empowering world of home automation! If you have ever wanted your home to do more than just protect you against the outside elements and want to interface it to the digital domain, this book will show you how. By demonstrating several easy-to-build projects, you will be able to take the skills you learned from this book and expand upon and apply them toward custom home automation projects of your own design.

    標簽: Programming Your Hom

    上傳時間: 2020-06-06

    上傳用戶:shancjb

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