دانلود کتاب اینترنت اشیا باند باریک 5G LTE (NB-IoT)

Broadband wireless communication has evolved dramatically during the past few decades: WiFi, WiMax, ZigBee, Bluetooth, RFID, GSMr, UMTSTM, and _nally LTETM. These wireless technologies have been readily used by thousands of millions of users around the globe. This is because most of them transformed from a voice-centric technology, to a technology that supports rich multimedia applications, video stream- ing, rich Internet browsing, chatting, and voice over legacy IP networks. LTE is the most recent broadband cellular technology aiming at increasing data rates and exploiting advances in digital signal process- ing such as beam-forming, MIMO, and di_erent channel coding. LTE is now used by many multiple mobile operators around the globe. Existing mobile networks such as legacy GSM, CDMA2000r, and WCDMA are currently converging into LTE due to its e_cient modulation scheme, known as OFDM, and other advanced features that enable a new era of applications such as Internet of Things and sidelink communication. The next phase in LTE advancement is the huge proposal cur- rently under standardization by 3GPPTM (3rd Generation Partnership Project) to transform LTE into a new _fth generation LTE technology aiming at managing di_erent wireless technology; LTE, WiFi, Blue- tooth, and legacy cellular standards under one umbrella called 5G. Moreover, the new LTE advancement includes solid support for sev- eral applications that have never been supported before in any wireless technology. This includes applications like augmented and virtual real- ity, Internet of Things, device-to-device communication, machine type communication, carrier aggregation, dual connectivity, relay nodes, autonomous cars, mission-critical applications, industry automation and control, and many others. All of these technologies are bundled under one umbrella starting in Release 15 and targeting what is called next decade 5G family of standards that are currently in its initial set of release and standardization by 3GPP and ITU. Apparently, the LTE family of standards has grown signi_cantly in complexity and features. Although LTE Narrowband Internet of Things (NB-IoT) technology is manifested by low-complexity devices, its pro- tocol stack and operation remain a challenge. The core protocol stack and its operations are de_ned by 3GPP in many technical speci_cations and reports which requires careful study, understanding, and browsing of these speci_cations. Di_erent other protocols, applications, or infra- structures are still needed for the complete operation of NB-IoT in the _eld. This book presents the new 5G LTE NB-IoT technology based on Release 15, its protocol stack, architecture, operation, and challenges. The book covers di_erent aspects of NB-IoT and provides necessary details about this technology, while at the same time presents it in simplistic views, as much as possible. This book is one of few books that aims at providing a single-stop shop for one important feature of 5G LTE. The book focuses on pro- viding comprehensive details about a single 5G LTE feature, which is the cellular NB-IoT. NB-IoT is the next wireless technology to enable a world of digital connectivity in home, city, and building. NB-IoT con- nected devices are projected to reach a number of hundreds of thou- sands connected devices per square kilometer. This book covers the details of 5G LTE NB-IoT across di_erent chapters. In Chapter 2, we introduce the history of LTE, NB-IoT devices, and their requirements and applications. Chapters 3{7 cover the core 3GPP protocol stack of NB-IoT and explain the RRC, PDCP, RLC, MAC, and PHY sublayers. Chapter 8 explains how the quality of service framework is supported in core network for NB-IoT devices. Finally, Chapter 9 covers use cases and deployment recommendations for NB-IoT networks and devices.