05.12.2012 – Tutorial by Gian-Luca dei Rossi

Title: Performance evaluation of ARQ protocols

Date: 05/12/2012
Type: review of literature
Speaker: Gian-Luca dei Rossi (Ca’ Foscari, Venice)

Abstract: ARQ (Automatic Repeat Request) protocols are widely used in computer networks in order to provide reliable communications over unreliable  channels such as wireless links. Following the track of the previous lecture, this talk proposes an analysis, based on matrix geometric methods, of ARQ Protocols in wireless networks with Adaptive Modulation and Coding (AMC), modelled as Discrete Time Markov Chains  (DTMCs), as originally proposed in [1]. The derivation of some performance indices is then shown.

[1] Long B. Le, Edkram Hossain, Michele Zorzi: “Queueing Analysis for GBN and SR ARQ Protocols under Dynamic Radio Link Adaptation with Non-Zero Feedback Delay” IEEE Transactions on Wireless Communications, volume 6, issue 9 (september 2007), pages: 3418-3428.

Prerequisites: Some very basic knowledge of linear algebra and computer networks, attendance to the previous seminar on Matrix Geometric Methods.