IK2504 Wireless Access Protocols 6.0 credits

1)Wireless packet transmission: Fading channels, ARQ, HARQ, Energy efficient protocols, Link adaption & scheduling, Throughput/Delay tradeoff.2) Multiple access protocols: Introduction, Models & Classification3) Conflict free access schemes, FDMA/TDMA-systems, Generalized TDMA, Dynamic conflict free access: Reservation schemes, Polling. Bluetooth.4)ALOHA-type Protocols: Pure & slotted Aloha. Finite & infinite uses populations. Delay & Stability analysis. Impact of radio channels (errors, fading, capture). Multiple access in cellular systems.5) Carrier Sense type Protocols: Persistency, slotted/pure CSMA. CSMA/CD. Hidden terminals. IEEE 802.11 Hiperlan/2.6)Collision Resolution Protocols: Tree & stack protocols, limited sensing.7) Multihop radio networks: multiple access in multihop systems. STDMA, Multihop CSMA. Multihop routing schemes.

The course aims at providing the students the fundamentals packet oriented wireless communication systems.  After successful completion of the course the student should able to perform performances analysis of media access protocols, in particular in packet radio systems with specific emphasis on radio layer aspects as fading, interference and power capture phenomena are treated.

120 university credits (hp) in engineering or natural sciences and documented proficiency in English corresponding to English A.

- 2E1421 Signalteori or equivalent (Basic course in statistics and stochastic processes)- 2E1618 Queuing Theory and Teletraffic Systems or equivalent (Queuing theory fundamentals: Markovian systems analysis, M/M/x-queuing system, M/D/1-queuing systems, moment-generating function techniques).    * 2E1511, Radio Communication, Basic Course or similar course      Basic course  in wireless propagation & transmission, coding for fading channels  

If the course is discontinued, students may request to be examined during the following two academic years.

• ANN1 - Homework Problems, 6.0 credits, grading scale: P, F

Based on recommendation from KTH’s coordinator for disabilities, the examiner will decide how to adapt an examination for students with documented disability.

The examiner may apply another examination format when re-examining individual students.

1.  Either 
* adequat
e solution of homework problems at seminar,
 or 
* written exam
2. (4 ECTS credits) Individual project report

Jens Zander

• All members of a group are responsible for the group's work.
• In any assessment, every student shall honestly disclose any help received and sources used.
• In an oral assessment, every student shall be able to present and answer questions about the entire assignment and solution.

Textbook: R. Rom, M. Sidi: "Multiple Access Protocols", Springer, 1990