Mobile communication has gained significant importance in today’s society. As of 2010, the number of mobile phone subscribers has surpassed 5 billion [ABI10], and the global annual mobile revenue is soon expected to top $1 trillion [Inf10]. While these numbers appear promising for mobile operators at first sight, the major game-changer that has come up recently is the fact that the market is more and more driven by the demand for mobile data traffic [Cis10].
上傳時間： 2020-05-27
上傳用戶：shancjb
The third generation (3G) mobile communication system is the next big thing in the world of mobile telecommunications. The first generation included analog mobile phones [e.g., Total Access Communications Systems (TACS), Nordic Mobile Telephone (NMT), and Advanced Mobile Phone Service (AMPS)], and the second generation (2G) included digital mobile phones [e.g., global system for mobile communications (GSM), personal digital cellular (PDC), and digital AMPS (D-AMPS)]. The 3G will bring digital multimedia handsets with high data transmission rates, capable of providing much more than basic voice calls.
標簽： Communications Introduction Mobile 3G to
上傳時間： 2020-05-27
上傳用戶：shancjb
There are few technologies that have had a more profound effect on people’s lives than mobile communications. As recently as twenty years ago no one had a mobile phone, while today 1.4 billion men, women and children depend on them. This now exceeds the number of landline users, where it took the preceding one hundred years to reach the 1 billion mark. The ability to make mobile voice calls turns out to be the answer to a deeply felt need across different cultures who simply want to communicate.
標簽： Communications Wireless Mobile and
上傳時間： 2020-05-30
上傳用戶：shancjb
One of the very first books published on the social impact of the mobile phone was Timo Kopomaa’s The City in Your Pocket: Birth of the Mobile Information Society. The book, published in 2000, was based on research that Kopomaa had under- taken for Nokia and Sonera as part of his doctoral studies in the Centre for Urban and Regional Studies at the Helsinki University of Technology. The first line he writes in the book is peculiar: ‘Mobile communication is not a serious matter’. By this, we assume he is referring to a view of the world that would regard the mobile phone as little more than an unremarkable fact of everyday life – a simple play- thing for the young, or a productivity tool for the business executive and busy parent.
標簽： Communications Wireless Mobile and
上傳時間： 2020-05-30
上傳用戶：shancjb
Rapid progress in information and communications technology (ICT) induces improved and new telecommunications services and contributes greatly to society in general and to vendors and network and service providers. In addition to existing services such as telephony or leased line services, spread of the Internet, the Internet Protocol (IP) phone, and new communications services like IPTV are making great progress with the development of digital subscriber lines (DSL) and high - speed communications technologies like fi ber to the home (FTTH).
標簽： Telecommunications Networks
上傳時間： 2020-06-01
上傳用戶：shancjb
Second-generation telecommunication systems, such as the Global System for Mobile Communications (GSM), enabled voice traffic to go wireless: the number of mobile phones exceeds the number of landline phones and the mobile phone penetration is approaching 100% in several markets. The data-handling capabilities of second-generation systems are limited, however, and third-generation systems are needed to provide the high bit-rate services that enable high-quality images and video to be transmitted and received, and to provide access to the Web with higher data rates.
標簽： Evolution WCDMA UMTS HSPA LTE for and
上傳時間： 2020-06-01
上傳用戶：shancjb
Wirelesscommunications,especiallyinitsmobileform,hasbroughtusthefreedomofmobility andhaschangedthelifestylesofmodernpeople.Waitingatafixedlocationtoreceiveormakea phone call, or sitting in front of a personal computer to send an e-mail or download a video program, has become an old story. Nowadays it is commonplace for people to talk over a cell phonewhilewalkingonthestreet,ortodownloadandwatchamoviewhiletravelingonatrain. Thisisthebenefitmadeavailabletousbythesuccessfulevolutionofwirelesscommunications over three generations, with the fourth generation being under way.
標簽： Communications Management Wireless Resource
上傳時間： 2020-06-01
上傳用戶：shancjb
The next avatar of the Internet will revolutionize our world. In time, it will provide us a universal remote control, enabling us to monitor and control physical objects located anywhere on the planet, using a smart phone. It will make the universe around us programmable, allowing us to script the behav- ior of physical objects with electronic commands. This book is about such an emerging new version of the Internet.
標簽： Infrastructure Construction Design RFID and an of
上傳時間： 2020-06-08
上傳用戶：shancjb
MotioninterfaceTM is becoming a "must-have"function being adopted by smartphone and tablet manufacturers due to the enormous value it adds to the end user experience. In smartphones, it finds use in applications such as gesture commands for applications and phone control, enhanced gaming, augmented reality, panoramic photo capture and viewing, and pedestrian and vehicle navigation. With its ability to precisely and accurately track user motions, MotionTracking technology can convert handsets and tablets into powerful 3D intelligent devices that can be used in applications ranging from health and fitness monitoring to location-based services. Key requirements for Motionlnterface enabled devices are small package size, low power consumption, high accuracy and repeatability, high shock tolerance, and application specific performance programmability-all at a low consumer price point.
標簽： mpu6050
上傳時間： 2022-07-06
上傳用戶：zhaiyawei
VIP專區(qū)-嵌入式/單片機編程源碼精選合集系列（104）資源包含以下內(nèi)容：1. mips命令集詳解.2. 數(shù)碼相框原理圖,ZXDP-010 (8302+720).3. CBM2090單片8BIT 16BIT共板原理圖.4. 紅外線遙控是目前使用最廣泛的一種通信和遙控手段。由于紅外線遙控裝置具有體積小、功耗低、功能強、成本低等特點.5. 時間觸發(fā)嵌入式系統(tǒng)設計模式 使用8051系列微控制器開發(fā)可靠應用.6. 關于555時基電路原理以及應用的介紹說明.7. 一個關于s3c2410_LCD_640*480的驅(qū)動程序.8. ipod——touch攻略.9. SDMMC 源碼 SD、MMC卡的讀寫程序.10. 嵌入式試驗開發(fā)平臺簡介.11. Mobile phone MMI design reference..12. 我寫的stv2248 芯片的驅(qū)動程序.13. 應用于S60平臺的示例程序.14. YAFFS (Yet Another Flash File System) is now in its second generation and provides a fast robust fil.15. 關于h264的演示 內(nèi)容不錯 希望大家喜歡..16. Michael Barr是Netrino公司的總裁兼創(chuàng)始人.17. 2006年軟考的嵌入式系統(tǒng)設計師考試題及答案.18. S3C2440開發(fā)板原理圖以及成品圖片.是硬件開發(fā)工程師的好參考資料.19. 一個可以實現(xiàn)嵌入式視頻監(jiān)控系統(tǒng)的服務器軟件。.20. 一個可以實現(xiàn)嵌入式視頻監(jiān)控系統(tǒng)的最新版客戶端軟件。.21. 東軟嵌入式高級C培訓(2007)).22. 最新的uffs,目前是1.1.2版本.23. NokiaSeries40Book1,介紹了40平臺的手機開發(fā).24. 數(shù)控編程開發(fā)事例,對數(shù)控機床的直線和圓戶進行插補,.25. 用STR710控制串口及CC1100進行無線通信.26. 非常不錯的單片機開發(fā)板原理圖.27. s3c44b0bootloader分析.28. 以 DSpic30f4011為 SPI SLAVE的范例程式.29. 漢字與字符顯示函數(shù)。對于任一主函數(shù).30. 最詳細最專業(yè)的MODBus協(xié)議介紹。 給MODBus總線開發(fā)的朋友們一些參考！.31. 本文較為詳細的介紹了雙CPU的C51系統(tǒng)設計中.32. c51的時鐘芯片讀寫函數(shù).33. 本書介紹了PCI局部總線的基本概念,功能,操作規(guī)則和使用方法.34. Intel公司的閃存轉(zhuǎn)換層(Flash Translaion Layer)規(guī)范指導文件.35. h.261 player with running h.261,p24,h26 file.36. I2C接口協(xié)議.37. First of all we would like to thank God Almighty for giving us the strength and confidence in pursi.38. 2008年最新出版Silverlight及Blend學習電子書教程合集.39. 利用VB與VC程式整合開發(fā)實現(xiàn)影像物體分類辨識的PLC輸送帶系統(tǒng).40. 凌陽公司機sunplus1002在這個芯片下.
標簽： 光電子
上傳時間： 2013-06-25
上傳用戶：eeworm
