'Binary phase shift keying' diaporamas de présentation

TCP over ATM:

TCP over ATM:. UBR: for delay-tolerant applications e.g., ftp, telnet ABR: for delay sensitive applications, e.g., on-line sessions provides explicit congestion signaling TCP over UBR:

1.93k views • 137 slides

Pass-band Data Transmission

Pass-band Data Transmission. Dr. Teerasit Kasetkasem. Block Diagram. Functional model of pass-band data transmission system. Signaling .

1.98k views • 116 slides

The Global Positioning System (GPS)

The Global Positioning System (GPS). Michael Lombardi Chair, SIM Time and Frequency Metrology Working Group National Institute of Standards and Technology (NIST) lombardi@nist.gov. Why do satellite signals work better than ground signals for time transfer ?.

917 views • 76 slides

Mobile Communications Systems

Mobile Communications Systems. Janaka Harambearachchi. Modulation, coding, compression and encryption techniques. 1 Analogue modulation : time domain (waveforms), frequency domain (spectra), amplitude modulation (am), frequency modulation (fm), phase modulation (pm)

1.06k views • 68 slides

Design and manufacture of GROUND receiving STATIONs For Geo-stationary GMS-5 / MT-SAT / fy-2 and NOAA series polar orbi

Design and manufacture of GROUND receiving STATIONs For Geo-stationary GMS-5 / MT-SAT / fy-2 and NOAA series polar orbiting satellites Bui Doan Trong, Bui Trong Tuyen, Tran Minh Van, Tran Xuan Canh, Huynh Van Ngoc, Nguyen Van Hieu, Ngo Duy Tan. Space Technology Application Center

1.01k views • 60 slides

Physical Layer (Part 2) Data Encoding Techniques

Computer Networks Spring 2012. Physical Layer (Part 2) Data Encoding Techniques. Interpreting Signals. DCC 9 th Ed. Stallings. Data Encoding Techniques. Digital Data, Analog Signals [ modem ] Digital Data, Digital Signals [ wired LAN ] Analog Data, Digital Signals [ codec ]

562 views • 46 slides

Wireless Applications

Wireless Applications. Why Wireless?. Flexible Low cost Easy to deploy Support mobility. Wireless Technologies. BW. UWB. WiMax. WiFi. 3G. Bluetooth. RFID. range. Basics of Wireless Communication. Signal Frequency allocation Signal propagation Antennas Multiplexing.

688 views • 45 slides

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951 views • 45 slides

1.01k views • 40 slides

Digital Modulation Basics

Digital Modulation Basics. Introduction to digital modulation Relevant modulation schemes Geometric representations Coherent & Non-Coherent Detection Modulation spectra. Outline . Modulation & Demodulation. Carrier. Radio Channel. Carrier. Baseband Modulation.

978 views • 38 slides

Digital Modulation Basics

Digital Modulation Basics. Introduction to digital modulation Relevant modulation schemes Geometric representations Coherent & Non-Coherent Detection Modulation spectra. Outline . Modulation & Demodulation. Carrier. Radio Channel. Carrier. Baseband Modulation.

622 views • 38 slides

Network Operations & administration CS 4592 Lecture 9

Network Operations & administration CS 4592 Lecture 9. Instructor: Ibrahim Tariq. TRANSMISSION MODES.

493 views • 36 slides

Advantages of Digital Broadcasting

Advantages of Digital Broadcasting. Better signal to noise ratio Reduced interference Possible single frequency networks Less multipath distortion Automatic tuning Auxiliary data services. DRM - Digital Radio Mondiale.

900 views • 34 slides

Advantages of Digital Broadcasting

Advantages of Digital Broadcasting. Better signal to noise ratio Reduced interference Possible single frequency networks Less multipath distortion Automatic tuning Auxiliary data services. DRM - Digital Radio Mondiale.

554 views • 34 slides

Modem

Modem. By Amir Taherin. Eng. M. Zamanian. Contents. Definition. 1. History. 2. V.21, V.22, V.22bis. 3. Modulation. 4. Contents. Amplitude shift keying (ASK). 5. Frequency shift keying (FSK). 6. Phase shift keying (PSK). 7. 8. More Complex Modulation. Contents.

627 views • 33 slides

DATA COMMUNICATION 2-dimensional transmission

362 views • 27 slides

Chapter 7 Performance of QAM

Chapter 7 Performance of QAM. Performance of QPSK Comparison of Digital Signaling Systems Symbol and Bit Error Rate for Multilevel Signaling. Huseyin Bilgekul EEE 461 Communication Systems II Department of Electrical and Electronic Engineering Eastern Mediterranean University. 0 1 0 1. x.

662 views • 27 slides

Wireless Communications

Wireless Communications. High-Speed WLANs and WLAN Security. Objectives. Describe how IEEE 802.11a networks function and how they differ from 802.11 networks Outline how 802.11g enhances 802.11b networks Discuss new and future standards and how they improve 802.11 networks. IEEE 802.11a.

496 views • 24 slides

Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs)

Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: [ LECIM High Gain DSSS PHY (preliminary proposal) ] Date Submitted: [ 1 9 July, 2011 ] Source: [ Ted Myers, David Howard, Sourav Dey ] Company [ On-Ramp Wireless, Inc. ]

341 views • 23 slides

Basics of Direct Digital Synthesis

1.58k views • 13 slides