Solutions Manual for: Communications Systems‚ 5th edition by Karl Wiklund‚ McMaster University‚ Hamilton‚ Canada Michael Moher‚ Space-Time DSP Ottawa‚ Canada and Simon Haykin‚ McMaster University‚ Hamilton‚ Canada Published by Wiley‚ 2009. Copyright © 2009 John Wiley & Sons‚ Inc. All Rights Reserved. Chapter 2 2.1 (a) g (t ) = A cos(2π f c t ) fc = 1 T ⎡ −T T ⎤ t∈⎢ ‚ ⎥ ⎣ 2 2⎦ We can rewrite the half-cosine as: ⎛t ⎞ A cos(2π f c t ) ⋅ rect ⎜ ⎟ ⎝T ⎠ Using the property of multiplication
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Chapter 3 Mobile Radio Propagation: Large-Scale Path Loss 1. (a) Explain the advantages and disadvantages of the 2-ray ground reflection model in the analysis of path loss. (b) What insight does the 2-ray model provide about large-scale path loss that was disregarded when cellular systems used very large cells? 2 .In a 2-ray ground reflected model‚ assume that must be kept below 6.261 radians for phase cancellation reasons. Assuming a receiver height of 2 m‚ and given a requirement that be less
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Wireless network refers to any type of computer network that uses wireless (usually‚ but not always radio waves) for network connections. It is a method by which homes‚ telecommunications networks and enterprise (business) installations avoid the costly process of introducing cables into a building‚ or as a connection between various equipment locations.[1] Wireless telecommunications networks are generally implemented and administered using radio communication. This implementation takes place
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concept known as Tesla Theory‚ ii) The microwave power transmission(MPT) called Solar power satellite‚ and iii) The highly efficient fiber lasers for wireless power transmission. The output microwave power ranges from 50 W to 200 W at 2.45 GHz. KEYWORDS: Microwave Power transmission (MPT)‚ Nikola Tesla‚ Rectenna‚ Solar Power Satellites (SPS)‚ Wireless Power transmission (WPT) INTRODUCTION: Human beings are well accomsisted with the electrical and the components .we may live without having food
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and communication. It not only may relieve reading person ’s labor intensity‚ reduce the reading mistake‚ but also has the advantage of high speed and good real-time. The project of the wireless Electric Meter reading for wireless communication technology completes the design of automatic Electric Meter reading system. There the data can be interpreted and may be even compared to data from other wirelessly connected devices. Through researching the characteristic of main wireless communication protocol
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April 4th‚ 2006 A Technical Report: Wireless Sensor Networks and How They Work Prepared for Ann Holms University of California Santa Barbara Prepared by Ethan Culler-Mayeno University of California Santa Barbara Abstract Wireless sensor networks are a budding technology with the potential to change the way that we live. This report explains the workings of each network as a system of tiny computers called motes and the parts of the network. Furthermore‚ this report goes on to
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3G WIRELESS NETWORKS: OPPORTUNITIES‚ CHALLENGES AND COMPARISON BETWEEN 3G & 4G TECHNOLOGY By: Piyush Chandra EIILM UNIVERSITY‚ SIKKIM Email id:piyush.chandra20@gmail
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working in a team of four designing a secure wireless network on behalf of WeCare for a delivery company Rapid Pickup based on the requirements and by convincing the decisions maker of the company through fact based reports and presentations which clearly demonstrate that the proposed design works best for the company. WAP (Wireless Application Protocol) – Cellular phones/Handheld devices WAP or also known as Wireless Application Protocol is a set of protocols
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INTRODUCTION Currently‚ Verizon Wireless has two major billing systems: I2K and VISION. In accordance with the strategic goals of the company and taking into consideration the corporate vision and credo‚ The executive management decided that having one billing system would be congruent with the objectives of the organization as a whole and the IT group in particular. After several months of deliberation‚ using techniques such as brainstorming‚ receiving expert opinions of SME (Subject matter experts)
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IEEE 802.15.4: a wireless communication technology for large-scale ubiquitous computing applications Anis Koubâa‚ Mario Alves‚ Eduardo Tovar PP-HURRAY! Research Group‚ Polytechnic Institute of Porto Rua Dr. Antonio Bernardino de Almeida‚ 431‚ 4200-072 Porto‚ PORTUGAL {akoubaa‚ emt}@dei.isep.ipp.pt‚ mjf@isep.ipp.pt Abstract. Wireless Sensor Networks (WSNs) have been attracting increasing interest for supporting a new generation of ubiquitous computing systems with great potential for many applications
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