Engineering Homework Help

Engineering Homework Help. wireless networking

Hello,

I have a an assignment covers the following topics:

Lecture 8 – The Uniqueness of Wireless Communications, Part I

  • Antenna patterns.
    • Propagation modes (ground wave, sky wave, line-of-sight).
    Large-scale path loss
    • Differences between large-scale and small-scale path loss
    • Free space propagation – basic formula, dependence on certain parameters, more general models given pathloss exponents different than 2, comparisons with reference distance ( 0)
    • Computing received power in Watts, dBW, and dBm.
    • Five basic propagation mechanisms – Free space, transmission, reflections, diffraction, scattering
    • Reflections – how reflections occur, why signals constructively or destructively interfere
    • Diffraction – basic concept, why even an unobstructed line-of-sight path may still have diffraction loss, no problems or detailed questions
    • Scattering – basic concept but no detailed questions or problems
  • Lecture 9 – The Uniqueness of Wireless Communications, Part II
    Fading
    • Small scale fading – Basic problem of multipath, how severe fading can be, intersymbol interference
    • Doppler shift and the dependence on angle of arrival, Doppler spread and coherence time
    • Model of mobile radio channel
    • Delay spread relationship with coherence bandwidth, Doppler spread relationship with coherence time
    • Flat vs. frequency selective fading
    • Slow vs. fast fading

    Lecture 10 – The Uniqueness of Wireless Communications, Part III
    • Channel correction mechanisms – FEC, AMC, MIMO (4 uses), OFDM, bandwidth expansion, mmWaves
    • Coding and error control – probabilities of packet errors, parity, error detection and error correction

  • Backward Error Correction (retransmissions, ARQ) versus Forward Error Correction
    • Error correction codes and minimum Hamming distance
    • LDPC and Turbo code principles
    • Ways codes could fail to correct or detect errors
  • Lecture 11 – Internet of Things
    • (Only material from the notes on IoT, no more from the referenced paper)
    • Human-to-human versus human-to-machine versus machine-to-machine (M2M) communication
    • Role of big data in IoT
    • There is no predominant standard for IoT communications
    • Importance of IoT elements
    • Quality of service issues

    I have attached some lecture notes down below.

    Please let me know if you are familiar with the topics above, and I can explain you further what what the assigment is all about.

    Engineering Homework Help

     
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