Analysis of Go-Back-N ARQ in Block Fading Channels

Author

Ausavapattanakun, Kamtorn ; Nosratinia, Aria

Author_Institution

Univ. of Texas at Dallas, Richardson

Volume

6

Issue

8

fYear

2007

fDate

8/1/2007 12:00:00 AM

Firstpage

2793

Lastpage

2797

Abstract

This work analyzes the throughput of Go-Back-N (GBN) in block fading, a model frequently used for slow fading wireless channels. We devise hidden Markov models and block transition probabilities for the block fading channel, allowing us to calculate the throughput of GBN with reliable feedback, as well as unreliable feedback. The advantages of this approach include generality: it applies to two-state as well as multi-state models for forward and reverse channels. Also, the results for both reliable and unreliable feedback are expressed in terms of probability matrices, which can be used as convenient building blocks in the analysis and simulation of larger systems. Simulations verify our analysis.

Keywords

automatic repeat request; fading channels; hidden Markov models; matrix algebra; probability; protocols; Go-Back-N ARQ analysis; automatic repeat request; block fading wireless channels; block transition probability matrices; feedback; hidden Markov models; multistate models; Analytical models; Automatic repeat request; Computational modeling; Fading; Feedback; Hidden Markov models; Protocols; System recovery; Throughput; Transmitters;

fLanguage

English

Journal_Title

Wireless Communications, IEEE Transactions on

Publisher

ieee

ISSN

1536-1276

Type

jour

DOI

10.1109/TWC.2007.06062

Filename

4290018