INDEX 1. INTRODUCTION 1 1.1 Wireless sensors Deployment 2 1.2 Wireless Sensor and Actor Networks 3 1.3 The Physical Architecture of WSANs 3 1.4 Difference between WSNS and WS 4 1.5 Requirement of WSNs 5 2. Wireless Ad-Hoc Network 5 3. Current Issues and solution 6 3.1 Key management issue for future 9 4. Advantages, Disadvantages and Applications of WSNs 10 5. Conclusion 11 6. References 12 List of figures
Introduction Wireless networks have grown in popularity. This is largely due to the increase in the value of a network as more users are attached to it. The value added to a network by nature of connecting more devices to it, is summarized in 'Metcalf's law.' Metcalf's law states that if you 'connect any number, 'n,' of machines - whether computers, phones or even cars - and you get 'n' squared potential value.'[1] The incredible growth of the Internet seems to validate Metcalf's law. It then seems
Wired and Wireless Networks Introduction: This is a 21th century, technology is the most important and improved thing of the human life. It makes life easier and faster. Development of faster sophisticated technology we have better and fast life. So all we are connect each other by computer network. There are two different way of network: Wired and wireless. Now day we can found network almost everywhere. Home, business, public place, Airport, Planes, hospitals, school, train everywhere we can
1.1 Preamble Network topology can be defined in many ways since there are many different types of network that depending on the certain amount of user, ability, and purpose. For example, in Multimedia University (MMU) all networks inside our campus are connected through Local Area Network (LAN) to access MMLS for example. While when connected to outside through internet, we call it Wide Area Network (WAN). We are connected to the world via various network topologies, such as Point-to-point, Bus
Introduction to Wireless Networks 2.1Basic Concepts of a Communication Network Initially, before defining that what is a wireless network and how it works, firstly it is important to know some basic concepts like: what is a communication network in general, the services that it offers, the needed components for operation and normally it’s necessary to know some information about wired network because it is difficult to understand how works a wireless network before knowing how works a wired network, and
Summary Underwater wireless sensor networks are significantly different from terrestrial sensor networks in which sound is mainly used as the communication medium. This paper reviews the main challenges caused by the underwater environment for the development of efficient under water sensor networking solutions and introduces several novel medium access control (MAC) protocols with power control to increase efficiency and save on energy. I. Introduce Underwater wireless sensor networks (UWSN) has received
A wireless sensor network is a wireless network consisting of spatially distributed autonomous devices using sensors.They have the ability to monitor the physical as well as the environmental conditions.It is being widely adopted as a promising solution to numerous numbers of challenges which are being faced today. Sensor nodes, also known as motes, not only have limited amount of storage as well as processing capability which is a severe problem but also another constraint is the limited amount
Scope and Objective Wireless local area networks (WLANs) have the potential to improve the flexibility, productivity, and the quality of work life of an enterprise (Sage Research Staff, 2001). Berean Institute is a typical two year college with about a staff of sixty eight employees and 250 students per semester. Berean teaches cosmetology, barbering and the latest software and hardware technology, which is located in Philadelphia, Pennsylvania. Berean currently has two locations in the Philadelphia
Overview A wireless Local Area Network (LAN) is a moderate to high-speed flexible data communications system implemented as an extension to, or as an alternative for, a wired Local Area Network (Kolawole, 2014). In wireless LAN transmission making use of radio frequency to communicate over the air eliminates or at least minimizes the use of physically wired networks. From the beginning, IEEE 802.11 was designed to look and feel like IEEE 802 wired networks to include supporting all of the protocols
of communication is Mobile Ad Hoc network (MANET). It is also referred as Mobile mesh network. It is an automatic-configured network of mobile devices which are connected by the wireless links. It is a new technique of wireless paradigm for the mobile hosts. These Ad Hoc networks are not like the traditional wireless networks that rely on a fixed infrastructure but these hosts are dependent on each other so that the network is connected always(Advanced Network Technologies Divisionn.d.). This represent
Survey on wireless sensor networks: Many recent advancements which took place in the wireless communications and electronics is the reason which enabled development of cost effective sensors, and those sensors are used for various applications like in household, military and other areas. The networks still have some technical problems which still need to be fixed and are currently being researched. Primarily a wireless sensor network is a group of spatially spread sensors which are deployed to monitor
Motorola Inc is a global communication leader, powered by, and driving, seamless, mobility. Motorola is revolutionizing broadband, embedded systems and wireless networks – bringing cutting-edge technologies into the everyday life, with style (Motorola, 2008). With their projects of revolutionizing broadband, embedded systems and wireless networks, they are bringing new technologies into everyday life. They are recognized around the world for their policies on environment and safety issues. The Corporate
services, with the assistance of telecommunications and telecommunications-based tools. Here, the term telecommunications can mean any existing telecommunication networks such as Public Switched Telephone Network, Integrated Services Digital Network, or even Wireless Networks. However the major and the most important telecommunication network of E-commerce is the Internet. The great possibility and potential of E-commerce has been realized with the development of the Internet. Therefore understanding
Municipal Wi-Fi Municipal Wi-Fi generally refers to the perception of turning an entire city or region into a wireless access zone with a goal of making wireless internet access a universal service (Delta and Matsuura 17). Municipal Wi-Fi is in most instances deployed in large parts of the municipal area or the whole of it by employing a wireless mesh network, which uses hundreds of outdoor routers on utility poles. Recently, there have been struggles for municipal Wi-Fi on whether it should be
Wireless communication has encouraged the practice of optimizing performance in wireless networks to achieve higher data rates and network coverage for the end user. Such strategies and methods will be examined to verify their validity and to introduce future solutions to the limitations of wireless communication systems. Wireless communication performance is affected by channel fading, path loss, and interference. There are several techniques that can be used to avoid signal degradation. At
services, including wireless communications; local exchange services; long-distance services; data/broadband and internet services; video services; telecommunications equipment; managed networking; and wholesale services (Wireless Telecommunication Services Industry Profile: United States, 2013, 20). The wireless communication segment of the company has over one hundred million wireless subscribers accounting for approximately fifty-three percent of all total revenue. Maintaining wireless customer satisfaction
towards technology play a vital role in adopting a set method in determining how to instruct with wireless laptops (Kervin & Mantei, 2010). Alternatively, the way teachers perceive technology will hypothesize a key determinant of the nature of this quantitative, pre-experimental study. In this study, the reason why teachers do not routinely and effectively use available technology such as wireless laptops in K–12 classrooms will be examined. To take full advantage of technology, while reducing
1.0 INTRODUCTION Computer-based information system (CBIS) is a computer which plays the major role and with it there are six components that support the process such as people, hardware, software, telecommunications, database and procedure. Each of these components plays their part in ensuring the system run as instructed. Along with those components, the basic requirement is power and/or electricity. This is because without electricity, there will be no process can be done. People People or information
for the “Generation” of the mobile network. Today, mobile operators have started offering 4G services a higher number before the ‘G’ means more power to send out and receive more information and therefore the ability to achieve a higher efficiency through the wireless network. During the time of 1G, radio signals were transmitted in ‘Analogue’ form. 2G networks on the other hand, were based on narrow band digital networks. The 3rd generation of mobile networks has become popular and users access
Cell phones, Wi-fi, wireless modems, and other wireless products have become a potential health hazard. While their health effects are largely untested, there have been numerous studies of the effects of the electromagnetic radiation emitted from these devices. All scientists agree that this radiation is dangerous at high levels and new studies are beginning to suggest that they may pose health risk at lower levels as well.("Wi-Fi Health Dangers & Radiation Health Effects") U.S. Citizens enjoy the