Wireless Communications

... Wireless CommunicationsIntroduction to Wireless Communications 2Objectives•Explain how the major wireless technologies are used today•Describe various applications of wireless communications ... a wire Wireless communications Transmission of user data without the use of wires Wireless data communications technologies include:–Bluetooth Wireless LAN and WAN–Satellite–Cellular...

Ngày tải lên: 13/09/2012, 10:52

... Wireless CommunicationsRadio Frequency Identification 2Objectives•Define Radio Frequency Identification

Ngày tải lên: 13/09/2012, 10:52

... Wireless CommunicationsWireless Communications in Business 2Objectives•List the advantages of wireless communications for businesses•Discuss the challenges of wireless communications 3Advantages ... maintenance costs 9Voice over Wireless LAN (VoWLAN)•VoWLAN–Takes advantage of Voice over IP (VoIP) technology–Uses wireless infrastructure to carry voice and data Wireless VoIP ph...

Ngày tải lên: 13/09/2012, 11:16

... mạng wireless ATM (tốc độ lên đến 155Mbit/s)•1997 Wireless LAN - IEEE802.11–Chuẩn IEEE, 2.4 - 2.5GHz và hồng ngoại, 2Mbit/s•1998 các phiên bản GSM kế tiếp–Dành cho UMTS (Universal Mobile Telecommunications ... sử dụng •Mô tả các ứng dụng công nghệ truyền thông không dây •Ad hoc wireless network – Mạng truyền thông không dây Ad hoc Wireless personal network (Bluetooth) – Mạng truyền thô...

Ngày tải lên: 17/09/2012, 10:43

... VirginiaKeywords: Fading, Mobile Radio Propagation, Wireless CommunicationsCopyright 2000, Gregory D. Durgin THEORY OF STOCHASTIC LOCAL AREA CHANNELMODELING FOR WIRELESS COMMUNICATIONSGregory D. Durgin(ABSTRACT)This ... 1. INTRODUCTION 41.1.2 Ubiquity of Wireless DevicesWireless personal communications has permeated nearly every environment on earth. It isnow possible to use a wirele...

Ngày tải lên: 20/11/2012, 11:36

Ngày tải lên: 29/09/2013, 21:20

... patterning Au/Ti (0.5/0.05 mm) via a wet etch [Figure 3.26(b)]. 82 RF MEMS Circuit Design for Wireless Communications l te l lever Push electrode Pull electrode h c Figure 3.24 Push-pull switch ... insertion loss of 0.2 dB (0.1 dB due to the contact and 0.1 dB due 84 RF MEMS Circuit Design for Wireless Communications AA BB Bottom electrodes Signal line GaAs Contact Photoresist Ti/...

Ngày tải lên: 19/01/2014, 20:20

... students in electrical engineer- ing, channel equalization is a useful topic in communications. Data rates on wireless and wireline connections continue to rise, as do information densities ... Suppose the actual received values are ri = 1, r 2 = -7. (1.2) Channel Equalization for Wireless Communications: From Concepts to Detailed 1 Mathematics, First Edition. Gregory E. Bottomley...

Ngày tải lên: 16/03/2014, 22:20

... discussed. This chapter will focus on this topic. WIRELESS COMMUNICATIONS AND NETWORKS – RECENT ADVANCES Edited by Ali Eksim   Wireless Communications and Networks – Recent Advances ... obtained from orders@intechweb.org Wireless Communications and Networks – Recent Advances, Edited by Ali Eksim p. cm. ISBN 978-953-51-0189-5 Wireless Communications and Net...

Ngày tải lên: 31/03/2014, 22:20

... equipment vendors, pricing, and competition from other wireless services. 1.4.5 Fixed Wireless Access Fixed wireless access provides wireless communications between a fixed access point and multiple ... technology: a wireless headset for cell phones (Ericsson), a wireless USB or RS232 connector (RTX Telecom, Adayma), wireless PCMCIA cards (IBM), and wireless settop boxes (Eag...

Ngày tải lên: 01/04/2014, 00:04