pc to microcontroller wireless communication

... difficult to access and monitor 12 Satellite Networks (continued) 20 Wireless Local Area Networks (continued) 35 Government • Wireless communication – Lets city employees and contractors at remote ... wires • Wireless data communications technologies include: – Bluetooth – Wireless LAN and WAN – Satellite – Cellular 29 The Wireless Landscape (continued) 10 Satellite Networks • Used to transmit ... relocate the office 28 The Wireless Landscape 3 How Wireless Technology is Used • Wireless – Describes devices and technologies that are not connected by a wire • Wireless communications – Transmission...

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Ngày tải lên: 22/06/2014, 19:20

... special device to listen to a description of their drugs and dosages Wireless Communications Radio Frequency Identification 4 RFID System Components • Electronic Product Code (EPC) – Standardized ... packages – Can speed up and help automate sorting, in addition to preventing errors • The U.S. Department of Defense (DoD) – Uses RFID tags to control, handle and ship its inventory – Sports and Entertainment • RFID ... attached to any physical product – Unique number or code associated with each item • So that it can be identified electronically – EPCs usually represented in hexadecimal notation – EPC is either...

Ngày tải lên: 13/09/2012, 10:52

... and maintenance costs Wireless Communications Wireless Communications in Business 11 Summary • Wireless technology can positively impact an organization in many ways • Wireless technology faces ... Data • Key factor in reducing business costs – Shift the burden of accessing a customer’s data from the business to the customer – Customers can make better and more informed decisions • Customers ... and energy to learn a new system • Human factor in implementing wireless technology is sometimes a significant obstacle – Shortage of qualified staff 6 Increased Access to the Customer’s Own...

Ngày tải lên: 13/09/2012, 11:16

... không dây 33 Fixed Broadband Wireless (tt) • Wireless metropolitan area network (WMAN) – Tầm hoạt động phủ sóng đến 40km – Dựa trên chuẩn IEEE 802.16 Fixed Broadband Wireless – Dùng các antenna ... 802.11b, 2.4-2.5GHz, 11Mbit/s – Bluetooth, 2.4GHz, <1Mbit/s – IMT-2000 • Một số thành viên: UMTS, cdma2000, DECT, … – Khởi đầu của WAP (Wireless Application Protocol) và i-mode • Bước đầu tiên ... UMTS ở châu Âu, FOMA (giống UMTS) ở Nhật 28 Wireless Local Area Networks (tt) • Các chuẩn của IEEE đưa ra: – 802.11a, 802.11b, 802.11g , 802.11n Wireless Communications- Truyền thông không dây Giới...

Ngày tải lên: 17/09/2012, 10:43

... concept and its inventor. Such “editorials-in-miniature” are crucial for understanding how propagation, stochastic, and communication theory fit together to form the field of wireless channel modeling. Overall, ... used to clarify possible points of confusion, to justify a certain type of notation, to alert the reader to misconceptions that exist in the research literature, or even to provide some history ... for data transmission of current wireless systems is still tiny when compared to wired forms of communications. But wireless data rates continue to increase. To understand the push for higher...

Ngày tải lên: 20/11/2012, 11:36

... RAWCom (Research in Advanced Wireless Communications) laboratory at CSU. He has been working on the development of multi-carrier technologies for the wireless world (the topic of this book). He has ... world of wireless telecommunications, a number of trends are gaining widespread popularity. Among these is the explosion of interest in multi-carrier communications, and its application to wireless ... into N replicas, and each replica is put on one of the N carriers. Next, a spreading code is applied to the N carriers, where this spreading code is unique to user k and typically corresponds to...

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Ngày tải lên: 22/07/2013, 17:19

... hộp thoại chính và kết thúc thao tác thêm người liên lạc vào danh bạ. Phần mềm gọi điện thoại PC- to -PC miễn phí Phần mềm Skype là phần mềm cho phép người sử dụng gọi từ máy tính đến máy tính, máy ... khẩu. Nhấn Sign In để hoàn tất đăng ký và bắt đầu sử dụng Skype. 3. Đăng nhập Skype 5. Gọi PC - to - PC - Chuẩn bị microheadphone và phải đảm bảo hoạt động tốt. Tham khảo Sử dụng Microheadphone - ... đó chức năng máy tính đến máy tính là hoàn to n miễn phí với chất lượng âm thanh rất tốt và hàng ngày có trên 10 triệu người sử dụng phần mềm này trên to n thế giới. Để sử dụng phần mềm này gọi...

Ngày tải lên: 17/09/2013, 22:10

... format, data has to be converted into electromagnetic waves in order to be sent over a wireless channel. The techniques used to perform this are known as modulation techniques Wireless Networks46 Figure ... topology (the nodes under its coverage) in order for the network nodes to be polled. Such knowledge is difficult to achieve for a wireless network since topology changes occur frequently due to ... modern wireless networks is towards data communications, the demand for voice-related services such as traditional mobile phone calls is expected to continue to exist. Thus voice needs to be converted...

Ngày tải lên: 29/09/2013, 21:20

... interpret the detector as projecting the received vector y onto each of the two possible transmitted vectors x A and x B and comparing the energies of the projections. Thus, this detector is also called ... of antennas for our model to break down will have to be hugemongous. 46 EE 290S: Fundamentals of Wireless Communication Course Notes U.C. Berkeley Fall 2002 Instructor: David Tse Co-written with: ... multiple users to share the total degrees of freedom, with users appearing as pseudonoise to each other. For example, the GSM is a single-carrier system, IS-95 CDMA and 802.11b (wireless LAN standard)...

Ngày tải lên: 20/10/2013, 07:15

... Customers to Buy More Get Existing Customers to Buy More Attract New Customers Attract New Customers Maintain Sales In Off Season Maintain Sales In Off Season Increase Retail Inventories Increase ... Customers to Do It All Online + © 2003 McGraw-Hill Companies, Inc., McGraw-Hill/Irwin Introduce New Products Introduce New Products Get Existing Customers to Buy More Get Existing Customers ... Customers to Buy More Attract New Customers Attract New Customers Maintain Sales In Off Season Maintain Sales In Off Season Increase Retail Inventories Increase Retail Inventories Tie...

Ngày tải lên: 04/11/2013, 20:15

... project is to design the IsOWC system model. This is done by using Optiwave’s OptiSystem software. It took several days to study the software and to get used to it. Several designs were built to get ... Modulator varies the light intensity according to voltage 32 4.6 BER analyzer is connected to the transmitter when without 3R regenerator 34 4.7 Connection of the BER analyzer to the ... Q-factor and Bit rates with Distance of Intersatellite Link 36 37 xiii LIST OF ABBREVIATIONS OWC - Optical Wireless Communication IsOWC - Intersatellite Optical Wireless Communication...

Ngày tải lên: 19/01/2014, 07:20