The wide deployment of wireless networks and mobile technologies, along with the significant increase in the number of mobile device users, have created a very strong demand on various wireless-based, mobile-based software application systems and enabling technologies. This not only provides many new business opportunities and challenges to wireless and Networking service providers, mobile technology ven- dors, and software industry and solution integrators, butalso changes and enhances people’s lives in many areas, including communications, information sharing and exchange, commerce, home environment, education, and entertainment. Business organizations and government agencies face new pressure fortechnology updatesto upgrade their Networking infrastructures with wireless connectivity to enhance enterprise-oriented systems and solutions.
標(biāo)簽： Wireless-Based Software Systems
上傳時(shí)間： 2020-06-01
上傳用戶(hù)：shancjb
Five years have passed since the first edition of this book was published.Over the five years,the world has witnessed a technological revolution headlined by an array of exciting consumer and industrial products such as the Nintendo Wii, Apple iPod/iPad, sensor-rich smart phones, phones with cameras,new operating systems for mobile phones and apps,e-books,WiFi,voice- over-IP calls, social Networking, 3D animated movies, and cloud computing, to name the major ones that affect everyday living
標(biāo)簽： Foundations MEMS of
上傳時(shí)間： 2020-06-06
上傳用戶(hù)：shancjb
December 2007, San Jose, California: It seems a long time ago. I walked into a big Networking company to head their small Power over Ethernet (PoE) applications team. Surprisingly, I hardly knew anything about PoE prior to that day, having been a switching-power conversion engineer almost all my life. But it seemed a great opportunity to widen my horizons. As you can see, one notable outcome of that seemingly illogical career choice five years ago is the book you hold in your hands today. I hope this small body of work goes on to prove worthy of your expectations and also of all the effort that went into it. Because, behind the scenes, there is a rather interesting story to relate—about its backdrop, intertwined with a small slice of modern PoE history, punctuated by a rather res- tive search for our roots and our true heroes, one that takes us back almost two centuries
上傳時(shí)間： 2020-06-07
上傳用戶(hù)：shancjb
Internet of Things (IoT) [26] is a new Networking paradigm for cyber-physical systems that allow physical objects to collect and exchange data. In the IoT, physical objects and cyber-agents can be sensed and controlled remotely across existing network infrastructure, which enables the integration between the physical world and computer-based systems and therefore extends the Internet into the real world. IoT can find numerous applications in smart housing, environmental monitoring, medical and health care systems, agriculture, transportation, etc. Because of its significant application potential, IoT has attracted a lot of attention from both academic research and industrial development.
標(biāo)簽： Technologies Internet Things RFID for of
上傳時(shí)間： 2020-06-08
上傳用戶(hù)：shancjb
SDN （Software Defined Networking）作為當(dāng)前最重要的熱門(mén)技術(shù)之一，目前已經(jīng)普遍得到大家的共識(shí)。有關(guān)SDN的資料和書(shū)籍非常豐富，但入門(mén)和學(xué)習(xí)SDN依然是非常困難。本書(shū)整理了SDN實(shí)踐中的一些基本理論和實(shí)踐案例心得，希望能給大家?guī)?lái)啟發(fā)，也歡迎大家關(guān)注和貢獻(xiàn)。本書(shū)內(nèi)容包括網(wǎng)絡(luò)基礎(chǔ)SDN網(wǎng)絡(luò)容器網(wǎng)絡(luò)Linux網(wǎng)絡(luò)OVS以及DPDKSD-WANNFV實(shí)踐案例
標(biāo)簽： sdn 網(wǎng)絡(luò) DPDK VPP OVS
上傳時(shí)間： 2021-12-09
上傳用戶(hù)：
5G中的SDN-NFV和云計(jì)算.pdf摘 要 通過(guò)介紹廣義的SDN/NFV和云計(jì)算，結(jié)合未來(lái)5G網(wǎng)絡(luò)的特點(diǎn)，分析了5G中上述技術(shù)的 應(yīng)用前景和技術(shù)定位；結(jié)合5G的網(wǎng)絡(luò)特點(diǎn)和現(xiàn)有網(wǎng)絡(luò)的部署情況，總結(jié)了各技術(shù)間的邏輯關(guān)系以及運(yùn) 營(yíng)商的側(cè)重點(diǎn)。引言 SDN/NFV 和云計(jì)算都是起源于 IT 領(lǐng)域的技術(shù)。 如今，云計(jì)算已經(jīng)非常成熟，在 IT 領(lǐng)域已經(jīng)大規(guī)模商 用，SDN技術(shù)作為新興的轉(zhuǎn)發(fā)技術(shù)，也已經(jīng)被谷歌等互 聯(lián)網(wǎng)巨頭部署在多個(gè)數(shù)據(jù)中心。隨著虛 擬化技術(shù)的發(fā)展，人們?cè)噲D將更多的專(zhuān)有 設(shè)備虛擬化和軟件化，從而達(dá)到降低成本 和靈活部署的目的，于是 NFV 的概念誕 生了。本文將結(jié)合廣義上 3 種技術(shù)本身 的特點(diǎn)和未來(lái)5G的網(wǎng)絡(luò)能力要求，分析 各技術(shù)在5G架構(gòu)中的技術(shù)定位和前景， 同時(shí)結(jié)合實(shí)際的發(fā)展情況，總結(jié)未來(lái)運(yùn)營(yíng) 商在技術(shù)研發(fā)和業(yè)務(wù)模式上的側(cè)重點(diǎn)。 1.1 廣義的SDN及標(biāo)準(zhǔn)化進(jìn)程 ONF 在 2012 年 4 月 發(fā) 布 白 皮 書(shū) 《Software- Defined Networking: The New Norm for Networks》
標(biāo)簽： 5G
上傳時(shí)間： 2022-02-25
上傳用戶(hù)：jason_vip1
學(xué)習(xí)本章要達(dá)到的目標(biāo)：口1.理解 Linux內(nèi)核編譯選項(xiàng)的含義口2.學(xué)會(huì)根據(jù)不同的硬件配置裁減定制內(nèi)核；口3.理解內(nèi)核編譯過(guò)程中每一步的功能，并編譯 Linux2.630內(nèi)核。需要去重新編譯 Linux內(nèi)核口增加操作系統(tǒng)對(duì)新的硬件設(shè)備的支持口增加內(nèi)核新的功能口對(duì)內(nèi)核代碼或內(nèi)核配置進(jìn)行優(yōu)化時(shí)Prompt for development and/or incomplete code/drivers口顯示處于開(kāi)發(fā)調(diào)試中或尚未完善的代碼或驅(qū)口選中：如果是測(cè)試人員或者開(kāi)發(fā)者；口不選：其他情況Local version append to kerne release口追加本地版本號(hào)口使用命令“uname-a”進(jìn)行查看。POSIX Message Queues口 POSIX消息隊(duì)列的支持，這是 POSIX進(jìn)程間通信的一部分BSD Process Accounting口將進(jìn)程的統(tǒng)計(jì)信息寫(xiě)入文件口信息通常包括建立時(shí)間、所有者、命令名稱(chēng)、內(nèi)存使用、控制終端等，這個(gè)選項(xiàng)一般是選擇的。Enable loadable module support口使能可加載模塊支持口如果使能此選項(xiàng)則可以通過(guò)"makemodules_insta"把內(nèi)核模塊安裝在/lib/modules/中Kernel support for ELF binaries口內(nèi)核對(duì)ELF文件格式的支持口ELF是開(kāi)放平臺(tái)下最常用的二進(jìn)制文件格式支持動(dòng)態(tài)連接，支持不同的硬件平臺(tái)Kernel support for a out and ECOFF binaries口早期UNIX系統(tǒng)的可執(zhí)行文件格式，目前已經(jīng)被ELF格式取代Unix domain sockets口本機(jī)高效率的 Socket口僅能運(yùn)行在本機(jī)上的高效率的 Socket，簡(jiǎn)稱(chēng) Unix socket。口很多進(jìn)程使用為這種機(jī)制在操作系統(tǒng)內(nèi)部進(jìn)行進(jìn)程間通信，例如 X Window和 syslog等TCP/IP Networking口TcP/IP網(wǎng)絡(luò)協(xié)議的支持
標(biāo)簽： linux
上傳時(shí)間： 2022-03-29
上傳用戶(hù)：kingwide
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