... small and energy- limited batteries Examples of such networks include mobile cellular systems, wireless local area networks, wireless ad hoc networks, and wireless sensor networks In these energy- constrained. .. SUMMARY Recently, cross- layer design has been identified as a promising approach w[r]
Đây là giới thiệu của các hệ thống truyền thông dành cho sinh viên chuyên ngành điện tửviễn thông.Bộ môn Truyền thông và Mạng máy tính (Data Communications and Computer Networks) là một trong 2 bộ môn mới được thành lập tháng 92000 của Khoa CNTT (nay là Viện CNTTTT), bộ môn đảm nhiệm chức năng đào t[r]
Tiểu luận môn mạng máy tính Giới thiệu về mạng CSMACD Giới thiệu về mạng CSMACD Mô hình CSMACD Ứng dụng của CSMACD trong Ethernet Medium Access Communications Mục tiêu chủ yếu: chia sẻ môi trường Các phương pháp: Random access Scheduling: polling Scheduling: token passing Wireless LAN
Many innovative new use cases are now being made possible with the introduction of ultra low power wireless chipsets. Until recently, the only way to achieve data transfer between a sensor and client has been to use wires, or manually collect data from a logging device. Wireless technologies have be[r]
SMS4 is a Chinese block cipher standard, mandated for use in protecting wireless networks, and issued in January 2006. The input, output, and key of SMS4 are each 128 bits. The algorithm has 32 rounds, each of which modies one of the four 32bit words that make up the block by xoring it with a keyed[r]
Transport layer in ad hoc and sensor networks.topology control in wireless ad hoc and sensor networks.energy efficient communication for ad hoc wireless sensor networksenergy efficient communication for ad hoc wireless sensor networksenergy efficient communication for ad hoc wireless sensor networks[r]
Communications receivers DSP, software radios, and design, third edition 1.1 Radio Communications SystemsThe capability of radio waves to provide almost instantaneous distant communicationswithout interconnecting wires was a major factor in the explosive growth of communications during the 20th cent[r]
Energy efficient routing protocols are consistently cited as efficient solutions for Wireless Sensor Networks (WSNs) routing. The area of WSNs is one of the emerging and fast growing fields which brought low cost, low power and multifunctional sensor nodes. In this paper, we examine some protocols r[r]
Time synchronization plays an important role in wireless sensor networks which aim at bridging the gap between the physical and virtual world. In this thesis, two time synchronization approaches are investigated and implemented for BTnodes: global continuous clock synchronization and local on demand[r]
Due to the battery resource constraint, it is a critical issue to save energy in wireless sensor networks, particularly in large sensor networks. One possible solution is to deploy multiple sink nodes simultaneously. In this paper, we propose a protocol called MRMS (Multipath Routing in large scale[r]
(BQ) Part 2 book Ethernet networks has contents: Bridging and switching methods and performance issues, routers, wireless ethernet, managing the network, the future of ethernet, security. (BQ) Part 2 book Ethernet networks has contents: Bridging and switching methods and performance issues, routers,[r]
(BQ) Part 2 book Computer networking A top down approach has contents The link layer links, access networks, and LANs; wireless and mobile networks, multimedia networking, security in computer networks, network management.
The main goals of this textbook are to introduce the concepts of space, time,frequency diversity, and MIMO techniques that form the foundation of cooperativecommunications, to present the basic principles of cooperative communicationsand networking, and to cover a broad range of fundamental topics w[r]
Contents Preface to the Second Edition xix 1 Fundamentals 1 1.1 4G Networks and Composite Radio Environment 1 1.2 Protocol Boosters 7 1.2.1 Oneelement error detection booster for UDP 9 1.2.2 Oneelement ACK compression booster for TCP 9 1.2.3 Oneelement congestion control booster for TCP 9 1.2.4 Onee[r]