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Wireless & Mobile Communications Chapter 2: Wireless Transmission

Wireless & Mobile Communications Chapter 2: Wireless Transmission

Wireless & Mobile Communications Chapter 2: Wireless Transmission. Frequencies Signals Antennas Signal propagation Multiplexing Spread spectrum Modulation Cellular systems. Spectrum Allocation. twisted pair. VLF = Very Low Frequency UHF = Ultra High Frequency

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1.75k views • 74 slides
Wireless & Mobile Communications Chapter 2: Wireless Transmission

Wireless & Mobile Communications Chapter 2: Wireless Transmission

Wireless & Mobile Communications Chapter 2: Wireless Transmission. Frequencies Signals Antennas Signal propagation Multiplexing Spread spectrum Modulation Cellular systems. Spectrum Allocation. twisted pair. VLF = Very Low Frequency UHF = Ultra High Frequency

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746 views • 74 slides
Physical layer

Physical layer

Physical layer. Taekyoung Kwon. signal. physical representation of data function of time and location signal parameters of periodic signals: period T, frequency f=1/T, amplitude A, phase shift ? E.g., sinewave is expressed as s(t) = A t sin(2 ? f t t + ? t ).

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703 views • 56 slides
Mobile Communications Chapter 2: Wireless Transmission

Mobile Communications Chapter 2: Wireless Transmission

Mobile Communications Chapter 2: Wireless Transmission. Frequencies Signals Antenna Signal propagation. Multiplexing Spread spectrum Modulation Cellular systems. Frequencies for communication. VLF = Very Low Frequency UHF = Ultra High Frequency

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673 views • 43 slides
Mobile Communications Chapter 2: Wireless Transmission

Mobile Communications Chapter 2: Wireless Transmission

Mobile Communications Chapter 2: Wireless Transmission. Frequencies Signals Antenna Signal propagation. Multiplexing Spread spectrum Modulation Cellular systems. Frequencies for communication. VLF = Very Low Frequency UHF = Ultra High Frequency

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488 views • 41 slides
Mobile Communications Chapter 2: Wireless Transmission

Mobile Communications Chapter 2: Wireless Transmission

Mobile Communications Chapter 2: Wireless Transmission. Frequencies Signals Antenna Signal propagation. Multiplexing Spread spectrum Modulation Cellular systems. Frequencies for communication. VLF = Very Low Frequency UHF = Ultra High Frequency

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534 views • 41 slides
CSE 4215/5431: Mobile Communications Winter 2011

CSE 4215/5431: Mobile Communications Winter 2011

CSE 4215/5431: Mobile Communications Winter 2011. Suprakash D at ta datta@cs.yorku.ca Office: CSEB 3043 Phone: 416-736-2100 ext 77875 Course page: http://www.cs.yorku.ca/course/4215 Some slides are adapted from the book website. Signal propagation basics.

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282 views • 28 slides
Qian Zhang Department of Computer Science HKUST

Qian Zhang Department of Computer Science HKUST

Advanced Topics in Next-Generation Wireless Networks. Qian Zhang Department of Computer Science HKUST. Wireless Radio. Characteristics of Wireless Medium. Comparison to wired media Unreliable Low bandwidth Untethered: supports mobility Broadcast nature Shared medium

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328 views • 18 slides

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