Radio over Fiber based Network Architecture vorgelegt von Master of Science Hong Bong Kim aus Berlin von der Fakult¨ t IV - Elektrotechnik und Informatik a der Technischen Universit¨ t Berlin a zur Erlangung des akademischen Grades Doktor der Ingenieurwissenschaften - Dr.-Ing. - genehmigte Dissertation Promotionsausschuss: Vorsitzender Berichter Berichter : Prof. Dr.-Ing. Klaus Petermann : Prof. Dr.-Ing. Adam Wolisz : Prof. Dr.-Ing. Ralf Lehnert Tag der wissenschaftliche Aussprache:
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CHAPTER 4 TRANSMISSION MEDIA 4.1 Guided Transmission Media Twisted Pair Coaxial Cable Optical Fiber 4.2 Wireless Transmission Antennas Terrestrial Microwave Satellite Microwave Broadcast Radio Infrared 4.3 Wireless Propagation Ground Wave Propagation Sky Wave Propagation Line-of-Sight Propagation 4.4 Line-of-Sight Transmission Free Space Loss Atmospheric Absorption Multipath Refraction 4.5 4.6 Recommended Reading and Web Sites Key Terms‚ Review Questions‚ and Problems Key Terms Review Questions
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(1) 10-Mbps Ethernet‚ 10BASE5 (also known as thick ethernet or thicknet) was the original commercially available variant of Ethernet For its physical layer it used cable similar to RG-8/U coaxial cable but with extra braided shielding Disadvantages Adding new stations to network was complicated by the need to accurately pierce the cable. The cable was stiff and difficult to bend around corners. One improper connection could take down the whole network and finding the source of the trouble
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Cisco ERP implementation Cisco Systems Cases Cisco Systems is one the most important successful cases on an ERP implement with the internet and since then it has added substantial CRM capabilities for customer service and an extensive portal for internal and customer-oriented knowledge management. Even with its lead‚ the company never rests: It recently went through another round of reengineering key processes to make better use of available technology. Cisco the company
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Electronic Sports: Really a “Sport”? When “sports” is heard the first thing thought of‚ big athletes‚ open fields‚ and probably a lot of sweat. However‚ that is not the case these days. Within the last ten to twenty years a radical thing that probably would not have been thought to exist is coming into fruition‚ and boy is it blooming. Electronic Sports‚ eSports for short‚ is the act of playing video games competitively for not just proving who’s better‚ but also for a very large chunk of money
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Checkpoint: Signals Adam Kurylo IT/242 3/8/2012 Voice Signal Technology- Commonly referred to voice over IP‚ or VoIP‚ involves the delivery of voice services over the internet. Voice travels in packets over IP networks with fixed maximum compacity. The technology uses protocols that deal with the data link and the physical layer‚ and use quality of service mechanisms to ensure the technology works well even in congested scenarios. Some of those technologies are; IEEE 802.11e- which defines
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Introduction Virtual Local Area Network or VLAN is a logical local area network. VLAN extends beyond a single traditional LAN to a group of LAN segments. VLAN is unique because it is a logical entity‚ where configuration is done in software. This paper will explain the benefits of VLAN and how implementing VLAN would benefit any company. Benefits of Creating a VLAN As organizations grow in size‚ users‚ and departments‚ they must keep network activity and performance working effectively and
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5CI003 IT Risk Analysis ASSIGNMENT Submission (Sem 1 – 2013-14) Lastname : Mark Firstname: Bash Student Number: 1124409 Declaration : I declare that this submission is my own work and has not been copied from someone else or commissioned to another to complete. Any materials used in this work (whether from published sources‚ the Internet or elsewhere) have been fully acknowledged and referenced and are without fabrication or falsification of data. I have adhered to relevant
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Chris Wiginton IS-3120 Unit 6 Assignment 6 Cisco-Layer 2 Resiliency Compared to HP’s IRF In order to provide speed and reliability‚ large and enterprise-level networks today are typically constructed in multiple layers. They are the access layer‚ also called the network edge layer‚ the aggregation or distribution layer; and the network core layer. The access layer is usually a mesh of network switches‚ linked to other switches in the aggregation layer‚ which in turn is linked to the core. This mesh
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EC 301 COMPUTER NETWORKING FUNDAMENTALS ASSIGNMENT 1 ANSWER ALL QUESTIONS 1. Which international standards organization is part of the United Nations? International Telecommunication Union (ITU). 2. What does “ISO” stand for? International Organization for Standardization. 3. Which organization represents the United States in ISO? The American National Standards Institute (ANSI). 4. Which technology is standardized in the IEEE 802.5 specification? Information technology
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