⎜ ⎟ ⎜ ⎟ ⎝ ⎠ . (14) All mobiles run a videoconference application. The traffic is composed of an MPEG-4 video stream (Baey, 2004) multiplexed with an AMR voice stream (Brady, 1969). This demanding type of application generates a high volume of data with high sporadicity and requi[r]
1. Introduction The adaptation of wireless technologies to the users rapidly changing demands is one of the main drivers of the wireless access systems development. New high-performance physical layer and multiple access technologies are needed to provide high speed data rates with[r]
ACKNOWLEDGEMENTS The preparation of a manuscript that gives birth to a book requires the cooperation and assistance of many persons. First and foremost, I must thank my family for enduring those long nights and missing weekends while I drafted and redrafted the manu[r]
F C " " Moreover, FT is the complex conjugate of FI defined below Equation 37 and denotes the DFT matrix. Thus, the demodulated signals R ϑ on the sub-channels are obtained by the DFT operation, as shown in Equation 41. In addition, some specific components of R ϑ rep[r]
Chapter 5: ACCESS SCHEMES AND PACKET SCHEDULING TECH. 121 • Free assignment. Fixed assignment protocols were the initial access protocols being used in commercial systems. However, because they were inefficient, newer proposals were demand-assignment protocols. The main application[r]
The article “Impact of the Environment and the Topology on the Performance of Hierarchical Body Area Networks” by J.-M. Dricot et al. addresses the throughput and energy consumption of various BAN topologies in both indoor and outdoor environments. T[r]
• Developer : Có đầy đủ các tính năng của Enterprise Edition nhưng được chế; tạo đặc biệt như giới hạn số lượng người kết nối vào Server cùng một lúc.... • Desktop Engine (MSDE): Ðây chỉ là một engine chạy trên desktop và không có user interface (giao diện). Thích hợp cho việc triển[r]
TRANG 1 DATA AND COMPUTER DATA AND COMPUTER COMMUNICATIONS COMMUNICATIONS TRANG 2 THE MAIN TOPICS OF THIS BOOK: THE MAIN TOPICS OF THIS BOOK: Exchange of data between Exchange of data be[r]
Giới thiệu về Free Online OCR - Nhận dạng ký tự tiếng Việt từ file ảnh, PDF Dịch vụ trực tuyến miễn phí này sẽ giúp bạn chuyển văn bản tiếng Việt trong một file ảnh thành file doc hay text một cách chính xác hơn nhờ hỗ trợ nhiều ngôn ngữ khác nhau, trong đó có tiếng Việt.
xxix ■ Chapter 2, “Networking Fundamentals,” introduces some of the terminology used by networking professionals and various types of computer networks. It also describes how the OSI reference model networking scheme supports net- working standards. In addition, thi[r]
Recently, cooperative diversity in wireless network has received great interest and is regarded as a promising technique to mitigate multi-path fading, which results in a fluctuation in the amplitude of the received signal. The cooperative communications is a new communication parad[r]
Its main characteristics are: lossy or lossless compression modes; resolution, quality and spatial scalability; transmission and progressive image reconstruction; error resilience for low bit rate mobile applications; Region Of Interest (ROI) functionality, etc. Part 1 of the sta[r]
336 I NTEGRALS Browder, A., Mathematical Analysis: An Introduction, Springer-Verlag, New York, 1996. Clark, D. N., Dictionary of Analysis, Calculus, and Differential Equations, CRC Press, Boca Raton, 2000. Courant, R. and John, F., Introduction to Calculus and Analysis, Vo[r]