Mobile communications (WS 17/18)

Material for Mobile communications

Audio recordings lecture

• 2017-10-11, Lectures 1 & 1,5
  • Ch 0, Formalities HTML , MP4
  • Ch 1, Motivation HTML , MP4
  • Ch 2a, Basic wireless, slides 1-14: structure of communication systems, antennas, simple attenuation model HTML , MP4
• 2017-10-16, Lectures 2,5-3,5
  • Ch 2a, Basic wireless, slides 15-36: Attenuation, shadowing HTML , MP4
• 2017-10-18
  • Ch 2a supplement 1, slides 37-50: Multi-path fading. HTML , MP4
• 2017-10-23
  • Ch 2a, slides 51 Doppler, 63-68 Rayleigh/Rice fading, Outage probability on the blackboard, 53-57 Delay spread, equalizer, 70-71 coherence time (with blackboard example) HTML , MP4
  • Coherence time derivation PDF
• 2017-10-25
  • Ch 2a, slides 75/76 coherence time/bandwidth vs. application properties; slides 58-62 diversity, degree of diversity, combining techniques. HTML , MP4
• 2017-10-30
  • Ch 2a, wrapup. Ch 2b slides 1-36: modulation, simple and slightly advanced. Intrasymbol interference. Frequency hopping. (We skipped slides 27-30; perhaps later). HTML , MP4
• 2017-11-06
  • Ch 2b slides 37-end: direct-sequence spread spectrum. Plus lot's of blackboard discussion on spectrum, Fourier, signal bandwidth, ... HTML , MP4
• 2017-11-08
  • Generell repetition: channel encode vs. modulation. Spread spectrum. Rake receiver in spread spectrum. HTML , MP4
• 2017-11-13
  • Ch 2c, slides 1-11, 36-47. Interference and multiplexing in general. Code Division multiple access. HTML , MP4
• 2017-11-15
  • Ch 2c, slides 12-20. OFDM basics. HTML , MP4
• 2017-11-20
  • Ch 2c, slides 19-35. OFDM, OFDMA, power allocation by waterfilling. HTML , MP4
    KKT tutorial
    KKT example with subcarrier power allocation example
• 2017-11-22:
  • Ch 2d, slides 1-12: SIC
    HTML , MP4
  • Ch 2d, slides 13-26: Superposition coding, Alamoutic MISO
    HTML , MP4
• 2017-11-27: no class!
• 2017-11-29
  • Ch 2d: 27-end: MIMO.
    HTML , MP4 (second part missing, sorry)
• 2017-12-04
  • Ch 3: 1-26. MAC in wireless; scheduled protocols (H/2); start of contention-based protocols; hidden/exposed terminal.
    HTML , MP4 (second part missing, sorry)
• 2017-12-06
  • Ch 4: 24-28 (with lot's of blackboard): RTS/CTS HTML , MP4
  • Ch 4: 29-46: Various MAC protocol ideas HTML , MP4
• 2017-12-11
  • Ch 4a, 1-21: UMTS, basics, air interface.
    HTML , MP4
• 2017-12-13
  • Ch 4a, : UMTS, RAN and Core
    Recording seems damaged; Camtasia is unable to export it properly :-( HTML , MP4
  • Ch 4a, 1- 52: LTE, architecture, core, radio
    HTML , MP4
• 2017-12-20
  • Ch 4b, 53-end: Scheduling, LTE advanced, CRAN.
    HTML , MP4
• 2018-01-08
  • Ch 4c, 5G networks
    No audio :-(
• 2018-01-10
  • Ch 5a, 1-32: WLAN, 802.11 family PHYs
    HTML , MP4
  • Ch 5a, 33-50: WLAN, 802.11 MAC
    HTML , MP4
• 2018-01-17
  • Ch 5a, 50-end: WiMax. Ch 3: ALOHA in fading channels
    HTML , MP4
  • Ch 5b: WLAN performance; 802.11 backoff.
    HTML , MP4
• 2018-01-22
  • Ch 5c, Bluetooth, ZigBee
    HTML , MP4

Audio recordings homework discussions

• 2017-10-18, HW 1, Solution hints HTML MP4
• 2017-10-25, HW 2, Solution hints HTML MP4
  HTML MP4
• 2017-11-08, HW 3, Solution hints HTML MP4
• 2017-11-15, HW 4, Solution hints HTML MP4
• 2017-11-22, HW 5, Solution hints HTML MP4
• 2017-11-29, HW 6, Solution hints HTML MP4
• 2017-12-06, HW 7, Solution hints HTML MP4
• 2017-12-13, HW 8, Solution hints HTML MP4
• 2017-12-13, HW 9, Solution hints HTML MP4
• 2018-01-10: no homework to discuss
• 2018-01-17, HW 10, Solution hints HTML MP4
• 2018-01-22, HW 11, Solution hints HTML MP4

Homework assignments

• Assignment 1, due 2017-10-18 PDF, Solution hints PDF
  Code example for simple plots Notebook , PDF
  Jupyter website
• Assignment 2, due 2017-10-25 PDF Solution hints PDF
  Example Python code for beamforming
• Assignment 3, due 2017-11-08 PDF, Solution hints PDF
  Example Python code for combining schemes.
  Example figures Grouped by diversity scheme , grouped by diversity order
• Assignment 4, due 2017-11-15 PDF, Solution hints PDF
  Code example for CDMA Python file (Improvment suggestion: pseudo-noise chipping sequence generated for every bit, not just once!), example BER curves for two terminals.
• Assignment 5, due 2017-11-22 PDF (not much to hint here; see audio recordings for the in-class dicussions)
• Assignment 6, due 2017-11-29 PDF Solution hints PDF
  
  Channel traces as zipped CSV files: Channels , SNR, SNR2
• Assignment 7, due 2017-12-06 PDF Mimo simulation, Mimo results ,
  No Santa Claus handed out :-(.
• Assignment 8, due 2017-12-13 PDF
  Superposition coding code
• Assignment 9, due 2017-12-20 PDF , Solution hints PDF
• Assignment 10, due 2018-01-17 PDF , Solution hints PDF
• Assignment 11, due 2018-01-24 PDF , Solution hints PDF

Other material