The aim of this report is to research wireless antennas and differences between them. Antennas are included 3 types: omnidirectional‚ semi-directional‚ and highly-directional. Any antenna has three fundamental properties: gain‚ directional and polarization. Omnidirectional Antennas. We can use this antenna in a: point-multipoint link‚ warehouse‚ hotspot‚ trade show‚ airport. The omnidirectional antennas transmit a signal in all directions‚ it is known dipole ("non-directional") antenna. The
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Wireless GSM Based Electronic Notice Board Mrs. S.P.Gaikwad ‚ Manikeshwari Shahdeo ‚ Meghna Priya ‚ Prashant Kr. Raghav Department Of Electronics Bharati Vidyapeeth College Of Engineering ‚ Pune India shilpapgaikwad@gmail.com maanimagic@gmail.com meghna.aquarious@gmail.com lucky_prashant90@yahoo.com Abstract- GSM based electronic notice display system is presented in this paper‚ this is the model for displaying notices in college on electronic notice board by sending messages in form of SMS
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Wireless communication is the transfer of information between two or more points that are not connected by an electrical conductor. The most common wireless technologies use radio. With radio waves distances can be short‚ such as a few meters for television or as far as thousands or even millions of kilometers for deep-space radio communications. It encompasses various types of fixed‚ mobile‚ and portable applications‚ including two-way radios‚ cellular telephones‚ personal digital assistants
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Analysis of Wireless Security Vulnerabilities‚ Attacks‚ and Methods of Protection Abstract - The rapid adoption and highly distributed nature of wireless networks has made it vulnerable to attacks and calls for innovative strategies of defense for network security. The lack of cables and transfer of information over airwaves makes data exchange more susceptible to interception. Furthermore‚ it is difficult to implement effective methods of security without sacrificing the quality and speed of network
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2229-4333 (Print) IJCST Vol. 3‚ ISSue 1‚ Jan. - MarCh 2012 Security Features used for Heterogeneous Networks in Wireless Architecture 1 Arshi Shamsi‚ 2Saoud Sarwar‚ 3Shamim Ahmad‚ 4Shahroukh Khan 2 IIMT Engineering College‚ Meerut‚ UP‚ India Al-Falah School of Engineering & Technology 3 Integral University‚ Lucknow‚ UP‚ India 4 APTECH‚ New Delhi‚ India 1 Abstract The ever-increasing demand of users for various wireless communication services has lead to the development and to the coexistence
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Wireless LAN Security Policy in the hospital Introduction regarding the policy:- This era is known as the computer era. This is because of the extensive advancement in technology i.e. using of laptops‚ computers‚ tablets and last but not the least the CELLPHONES. As per the increased rate of advancement in technology is like a boon for us. These various equipments are not only required by children or workers but are also demanded in high rate by doctors. This is so‚ because of its capacity of record
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A Technical Seminar Report On WIRELESS INTEGRATED NETWORK SENSORS Submitted to the JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY‚ HYDERABAD In partial fulfillment of the requirement for the award of the degree of BACHELOR OF TECHNOLOGY In ELECTRONICS AND COMMUNICATION ENGINEERING By D.VINEETH KUMAR (09B91A0414) SCHOOL OF ENGINEERING & TECHNOLOGY GURU NANAK INSTITUTIONS-TECHNICAL CAMPUS (Affiliated to JNTU‚ Hyderabad) Ibrahimpatanam‚ RangaReddy District -501506 2012-2013 GURU
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In our prison environments‚ there are many kinds of threats to inmate and officer safety daily. Bart ollas (2002) notes that order is a “dynamic social equilibrium”‚ and is the basis for violence or non-violence in the prisons‚ depending on how well it is maintained. The correctional system in our country contains within the walls‚ connected to our streets‚ many gangs. These groups‚ known as Security Threat Groups (STG’s) are usually operated on a racial bias‚ and are active in our Federal Bureau
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factor in the cost of setting up a network infrastructure‚ network security‚ storage‚ redundancy‚ backup‚ and maintenance. Compare that to a commercial PKI solution‚ it is considered more profitable in the long run to pay for the service and not worry about all the factors above. It is mainly the control ability that drives companies toward an in-house PKI solution. In return‚ in-house PKI costs rise because it requires a separate security model including hardware storage solution in order to contain
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Introduction Wireless is a term used to describe telecommunications in which electromagnetic waves (rather than some form of wire) carry the signal over part or the entire communication path. The first wireless transmitters went on the air in the early 20th century using radiotelegraphy (Morse code). Later‚ as modulation made it possible to transmit voices and music via wireless‚ the medium came to be called "radio." With the advent of television‚ fax‚ data communication‚ and the effective use of
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