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This book focuses on the study and development of one of the most advanced topics in broadband wireless communications systems: power efficiency and power consumption in wireless communications systems, especially of mobile devices. Hence, the main focus of this book is on the most recent techniques for the conservation of power and increase in power efficiency.
標(biāo)簽： Communications Efficiency broadband Power in
上傳時(shí)間： 2020-05-31
上傳用戶：shancjb
Welcome to the world of wireless communications and the logical extension to the broadband architectures that are emerging as the future of the industry. No aspect of communications will be untouched by the wireless interfaces;no part of our working environment will be left untouched either. As the world changes and the newer technologies emerge, we can expect to see more in the line of untethered communications than in the wired inter- faces.
標(biāo)簽： broadband Wireless Handbook
上傳時(shí)間： 2020-06-01
上傳用戶：shancjb
Abstract: High-speed and low-speed data converters serve critical functions in modern broadband mobile radios. This application note outlines how todetermine high-speed data converter performance requirements in baseband sampling radio architectures. Also, system partition strategies andadvantages are outlined when considering a high-speed analog front-end (AFE) solution.
標(biāo)簽： AFE 移動(dòng) 無(wú)線終端 導(dǎo)航
上傳時(shí)間： 2013-11-02
上傳用戶：jjj0202
Linear Technology offers some of the highest performance RF and signal chain solutions for wireless and cellularinfrastructure. These products support worldwide standards including, LTE, WiMAX, GSM,W-CDMA, TD-SCDMA,CDMA, and CDMA2000. Other wireless systems include broadband microwave data links, secure communications,satellite receivers, broadband wireless access, wireless broadcast systems, RFID readers and cable infrastructure
上傳時(shí)間： 2013-11-04
上傳用戶：kiklkook
為了能夠滿足基站易于選址、優(yōu)質(zhì)快速的建站要求和易維護(hù)、低成本、高可靠的運(yùn)行要求，本文對(duì)以方艙來(lái)實(shí)現(xiàn)一體化結(jié)構(gòu)基站做出一番探討。從系統(tǒng)設(shè)計(jì)的觀點(diǎn)闡述了移動(dòng)通信高性能基站天線設(shè)計(jì)的幾個(gè)關(guān)鍵問(wèn)題，介紹了智能天線技術(shù)在基站中的應(yīng)用，并且用HFSS軟件仿真了一種新型的對(duì)稱陣子天線，該天線駐波比小于2的帶寬可以達(dá)到60%，具有良好的寬頻帶特性。 Abstract: In order to meet the station construction requirement of easy site selection and fast base station， and meet the operational requirement of easy maintenance， low cost and high reliability， this paper discussed the unified architecture base station using shelter. Several key problems of high performance mobile communication base station antenna were illustrated from the view of system design， the application of smart antenna in base station was also introduced. And a novel dipole antenna was simulated by using HFSS， the VSWR of the antenna is less than 2， and the bandwidth was reach to 60%. So it has good broadband properties.
標(biāo)簽： 智能天線 基站 中的應(yīng)用
上傳時(shí)間： 2013-11-20
上傳用戶：linlin
This paper provides incumbent wireless Internet service providers (WISPs), new WISPs and demanding new markets (such as government and education) with a technical analysis of alternatives for implementing last-mile wireless broadband services.
標(biāo)簽： WISPs incumbent demanding providers
上傳時(shí)間： 2014-01-05
上傳用戶：二驅(qū)蚊器
OFDM Modem Applications • Digital Video Broadcast (DVB) • Digital Audio Broadcast (DAB) • broadband Wireless Access (802.16x) • Wireless LAN (802.11x & HiperLAN) Orthogonal OFDM Sub-carriers Orthogonal Frequency Division Multiplexing (OFDM)
標(biāo)簽： Broadcast Digital 8226 Applications
上傳時(shí)間： 2016-03-23
上傳用戶：cc1
移動(dòng)ip書(shū)籍，很有用。 Third Generation (3G) mobile offers access to broadband multimedia services - and in the future most of these, even voice and video, will be IP-based. However 3G networks are not based on IP technologies, rather they are an evolution from existing 2G networks. Much work needs to be done to IP QoS and mobility protocols and architectures for them to be able to provide the functionality 3G requires.
上傳時(shí)間： 2013-12-16
上傳用戶：moerwang
IEEE 802.16.2-2004 IEEE Recommended Practice for Local and metropolitan area networks -- Coexistence of Fixed broadband Wireless Access Systems
標(biāo)簽： IEEE metropolitan Coexistence Recommended
上傳時(shí)間： 2016-10-02
上傳用戶：teddysha
IEEE 802.16-2004 IEEE Standard for Local and metropolitan area networks Part 16: Air Interface for Fixed broadband Wireless Access Systems
標(biāo)簽： IEEE metropolitan Interface for
上傳時(shí)間： 2016-10-02
上傳用戶：nairui21
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