errorcontrol techniques for digital communication

Ngày tải lên: 22/06/2014, 01:20

Ngày tải lên: 11/07/2014, 21:20

... information symbol at the kth subcarrier, and f (t)is the pulse waveform of the symbol. When the rectangular pulse waveform is used, f (t) is given by Multicarrier Techniques for 4G Mobile Communications Shinsuke ... Techniques for 4G Mobile Communications, Shinsuke Hara and Ramjee Prasad OFDM for Wireless Multimedia Communications, Richard van Nee and Ramjee Prasad Radio over Fiber Technologies for Mobile Communications ... Publication Data Hara, Shinsuke Multicarrier techniques for 4G mobile communications. — (Artech House universal personal communications series) 1. Mobile communication systems I. Title II. Prasad,...

Ngày tải lên: 26/04/2013, 09:50

... as its Fourier transform: D H ( ␵ ) = ͵ +∞ −∞ ␾ H (⌬t)e − j2 ␲␵ ⌬ t d⌬t (2.27) Multicarrier Techniques for 4G Mobile Communications Multicarrier Techniques for 4G Mobile Communications Shinsuke ... 1990s, such as Global Systems for Mobile Telecommunications (GSM) [1], Personal Digital Cellular (PDC) [2], and Interim Standard (IS)-95 [3], on digital technologies for voice-oriented traffic. ... techniques to recent applications aiming at the 4G systems. Therefore, we decided to write a book on multicarrier techniques for 4G mobile communications systems. xv 15 Characteristics of Multipath...

Ngày tải lên: 20/01/2014, 23:20

... to: d ␵ =−f D sin ␪ d ␪ (2.31) therefore, finally, substituting (2.31) into (2.30), we obtain the Doppler power spectrum: Figure 2.6 Jakes’ model. 30 Multicarrier Techniques for 4G Mobile Communications f (t) ... rectangular pulse waveforms for subcarriers, the frequency spectra of the waveforms are widely spread and overlapped [see Figure 3.3(b)], although it can save the required bandwidth. Therefore, the concept ... written in a column vector form as S = [s (iT s + t spl ), ,s(iT s + qt spl ), ,s(iT s + N SC t spl )] T (3.8) = W − 1 (N SC )C i 28 Multicarrier Techniques for 4G Mobile Communications Figure 3.1...

Ngày tải lên: 20/01/2014, 23:20

Ngày tải lên: 07/03/2014, 11:20

Ngày tải lên: 30/05/2014, 23:16

Ngày tải lên: 30/05/2014, 23:58

Ngày tải lên: 22/06/2014, 01:20

Ngày tải lên: 22/06/2014, 20:20

Ngày tải lên: 22/06/2014, 22:20

Ngày tải lên: 22/06/2014, 23:20

... MPP to the point where you're asking for less than the maximum amount that the other person would think is plausible. Another reason for asking for more than you expect to get will be obvious ... home for the weekends and need money for books. When would she ask me? Seven o'clock on a Monday morning, just as she was racing out the door she'd say, "Dad, I'm sorry, I forgot; ... problems for you at closing. So you're almost eager to make the concession, but I want you to remember the rule: However small the concession they're asking you for, always ask for something...

Ngày tải lên: 23/10/2012, 10:25

... students of 10 th and 11 th form at FLSS ( except for students of 12 th form as there are no listening lessons for 12 th form students ) - collecting data for the analysis - assessing ... to a short passage for detailed information or for full comprehension. For example, listening to the announcement , listening to the instructions or listening to the weather forecast. There may ... knowledge necessary for them to comprehend . So , before listening , students should be “turn-in” so that they know what to expect, both in general and for particular tasks. For teachers , when...

Ngày tải lên: 07/11/2012, 14:26

... exactly the same information. If the task is correctly set, the students must pool their information and are thus forced to communicate through English. The information gap is therefore an important ... This study is just prepared for JHS teachers, techniques to improve the teaching of oral skills for senior high school (SHS) teachers, therefore, may be a good subject for further study. REFERENCES 1. ... creative construction and involves trial and error. 1.3.3. Techniques for Communicative Language Teaching There are plenty of techniques for CLT. Here are some of them: 5 ...

Ngày tải lên: 07/11/2012, 14:41

Ngày tải lên: 07/11/2012, 14:41

... Introduction 24 3.2.2. Pre-listening techniques 28 3.2.3. While-listening techniques 30 3.2.4. Post-listening techniques 31 3.2.5. Summary 32 3.3. Techniques for correcting students’spoken errors ... Methods 13 ã Techniques 13 2.7. Summary 13 Chapter 3: Suggested Techniques to Improve the Teaching of Oral Skills for Junior High School Teachers in Quang Ngai Province 14 3.1. Techniques for teaching ... VNU-Hanoi. Finally, I wish to thank my wife for the love she gives me and her encouragement in my doing this thesis. Hanoi, summer 2007 Trần Quốc Việt iv 3.2. Techniques for teaching listening 24 3.2.1....

Ngày tải lên: 07/11/2012, 14:41

... sample work for some reading lessons for 3 rd year students. Part III summarizes the issues addressed and presents recommendations for further improvements and some suggestions for further ... readers throughout the teaching procedure as follows: Before reading: Plan for the reading task ã Set a purpose or decide in advance what to read for as a whole class. Firstly, the teacher clarifies ... teachers to integrate different useful approaches for more interesting lessons. These approaches will be mentioned latter in terms of techniques for improving content reading skills. To sum up,...

Ngày tải lên: 07/11/2012, 14:50