ADSL, VDSL and Multicarrier Modulation
... ADSL, VDSL, and Multicarrier Modulation ADSL, VDSL, and Multicarrier Modulation. John A. C. Bingham Copyright # 2000 John Wiley & ... into more exotic realms. The and in ADSL, VDSL, and Multicarrier Modulation is not precise; the scope of the book is wider than the intersection (a logic designer's and )but narrower than the ... Wilson, and George Zimme...
Ngày tải lên: 19/10/2013, 11:15
... devices, and provides guidelines for their selection and use in typical installations. Previous Deployment Attempts Full-rate ADSL The initial ANSI T1.413 and ITU G.992.1 (from the ITU G.dmt standards ... on-hook and off-hook modes, and no intermodulation distortion. Internal microsplitters are small, low cost devices that do not require a power source (Figure 4). They typically hav...
Ngày tải lên: 10/12/2013, 17:15
... cellulose and with cellobiose (the main product of cellulolysis), and with a mixture of glucose and cellobiose. Cell extracts and extracellu- lar media were analysed by 2D NMR spectroscopy and by ... incubation were taken at 1, 2 and 3 h, and extracellular and intracellular media were separated by centrifugation and analysed in par- allel by 1 H NMR spectroscopy and by TLC...
Ngày tải lên: 07/03/2014, 17:20
Báo cáo Y học: Expression of uncoupling protein-3 in subsarcolemmal and intermyofibrillar mitochondria of various mouse muscle types and its modulation by fasting docx
... protein-3 in subsarcolemmal and intermyofibrillar mitochondria of various mouse muscle types and its modulation by fasting Maria Jimenez, Cedric Yvon, Lorenz Lehr, Bertrand Le ´ ger, Patrick Keller, ... were killed by cervical dislocation, and tibialis anterior, gastrocnemius and soleus muscles were carefully dissected and kept on ice. In fasted animals and the respective control...
Ngày tải lên: 24/03/2014, 04:21
3G, HSPA and FDD versus TDD networking smart antennas and adaptive modulation
... variable rates and a range QoS are highlighted. The UL and DL modulation and spreading schemes are described and UTRA and IMT 2000 are compared in terms of the various solutions standardized. The ... Networking and Standards, John Wiley and IEEE Press, June 2003, 1060 pages. • L. Hanzo, M. M¨unster, T. Keller, B-J. Choi, OFDM and MC-CDMA for Broadband Multi-User Communicatio...
Ngày tải lên: 20/04/2014, 09:52
Nghiên cứu công nghệ ADSL sử dụng phương thức điều chế DTM ( Discrete MultiTone Modulation ).
... phá huỷ sản phẩm. 1.3.2. Nhận thực thông tin hay phát hiện xuyên tạc thông tin (authentication and tamper detection): Trang 11 Một tập các thông tin sẽ được giấu trong phương tiện chứa ... thông tin cao và thuỷ vân không cần bền vững. 1.3.3. Giấu vân tay hay dán nhãn (fingerprinting and labeling): Thuỷ vân trong những ứng dụng này đựơc sử dụng để nhận diện người gửi hay người
Ngày tải lên: 26/04/2013, 08:36
Nghiên cứucông nghệ ADSL sử dụng phương thức điều chế DTM ( Discrete MultiTone Modulation ).
... pha không sóng mang CAP Điều chế biên độ pha không sóng mang CAP ( Carrierless Amplitude and Phase Modulation ) Phơng pháp điều chế này tơng tự nh QAM nhng do lựa chọn khôn ngoan hai hàm cơ ... DMWT ( Discrete Multiwavelet MultiTone Modulation ) trong đó toán tử Fourier đợc thay thế bằng toán tử sóng. Kỹ thuật này đợc sử dụng trong công nghệ VDSL. 3. Các phơng pháp mã hoá Do môi ... ch...
Ngày tải lên: 26/04/2013, 08:36
Digital Communications I: Modulation and Coding Course
... Nyquist bandwidth constraint Nyquist bandwidth constraint: The theoretical minimum required system bandwidth to detect Rs [symbols/s] without ISI is Rs/2 [Hz]. Equivalently, a system with bandwidth ... [symbols/s] without ISI. Bandwidth efficiency, R/W [bits/s/Hz] : An important measure in DCs representing data throughput per hertz of bandwidth. Showing how efficiently the bandwid...
Ngày tải lên: 18/10/2013, 06:15
Modulation and coding course- lecture 10
... Digital Communications I: Modulation and Coding Course Period 3 - 2007 Catharina Logothetis Lecture 10 Lecture 10 10 Effective ... we talked about: Channel coding Linear block codes The error detection and correction capability Encoding and decoding Hamming codes Cyclic codes Lecture 10 20 Trellis – cont’d 1/11 0/00 0/10 1/11 1/01 0/00 0/11 0/10 0/01 1/11 1/01 1/00 0/00 0/...
Ngày tải lên: 25/10/2013, 06:15
Modulation and coding course- lecture 9
... error detection and correction codes Lecture 9 7 Why using error correction coding? Error performance vs. bandwidth Power vs. bandwidth Data rate vs. bandwidth Capacity vs. bandwidth (dB) ... understanding Linear block codes. Lecture 9 21 Linear block codes – cont’d Discrete, memoryless, symmetric channel model Note that for coded systems, the coded bits are modulated and t...
Ngày tải lên: 25/10/2013, 06:15