On ARQ feedback intensity of the IEEE 802.16 ARQ mechanism

Author

Tykhomyrov, Vitaliy ; Sayenko, Alexander ; Martikainen, Henrik ; Alanen, Olli ; Hämäläinen, Timo

Author_Institution

MIT Dept., Univ. of Jyvaskyla, Jyvaskyla

fYear

2008

fDate

16-19 June 2008

Firstpage

1

Lastpage

6

Abstract

The IEEE 802.16 standard defines the ARQ mechanism as a part of the MAC layer. The functioning of the ARQ mechanism depends on a number of parameters. The IEEE 802.16 specification defines them but it does not provide concrete values and solutions. We ran simulation scenarios to study how the ARQ feedback intensity impacts the performance of application protocols. The simulation results reveal that a low ARQ feedback intensity results only in a marginal improvement. Though it is possible to optimize the ARQ feedback intensity, it is reasonable to rely upon more frequent ARQ feedback messages as they do not result in a performance degradation. At the same time, ARQ connections, which work on top of HARQ, can delay the ARQ feedbacks up to the ARQ retry timeout to optimize the performance.

Keywords

IEEE standards; WiMax; automatic repeat request; telecommunication standards; ARQ feedback intensity; IEEE 802.16 ARQ mechanism; MAC layer; automatic repeat request; delay; Automatic repeat request; Base stations; Concrete; Error correction; Feedback; Laboratories; Performance analysis; Protocols; Radio access networks; Telecommunication standards; ARQ; HARQ; IEEE 802.16; NS-2;

fLanguage

English

Publisher

ieee

Conference_Titel

Telecommunications, 2008. ICT 2008. International Conference on

Conference_Location

St. Petersburg

Print_ISBN

978-1-4244-2035-3

Electronic_ISBN

978-1-4244-2036-0

Type

conf

DOI

10.1109/ICTEL.2008.4652627

Filename

4652627