An Adaptive QoS Architecture for IEEE 802.16 Broadband Wireless Networks

Author

Msadaa, Ikbal Chammakhi ; Filali, Fethi ; Kamoun, Farouk

Author_Institution

Eurecom Inst., Sophia-Antipolis

fYear

2007

fDate

8-11 Oct. 2007

Firstpage

1

Lastpage

3

Abstract

In this paper, we propose a new QoS architecture for PMP 802.16 systems operating in TDD mode over wirelessMAN-OFDM physical layer. It includes a call admission control policy and a hierarchical scheduling algorithm. The CAC policy we propose adopts a min-max fairness approach making efficient and fair use of available resources. The proposed scheduling algorithm flexibly adjusts uplink and downlink bandwidth to serve unbalanced traffic while considering adaptive modulation and coding (AMC) scheme. The efficiency of the proposed QoS architecture is revealed through simulation.

Keywords

IEEE standards; OFDM modulation; adaptive modulation; broadband networks; metropolitan area networks; quality of service; telecommunication congestion control; telecommunication standards; time division multiplexing; CAC policy; IEEE 802.16 broadband wireless networks; PMP 802.16 systems; TDD mode; adaptive QoS architecture; adaptive modulation and coding scheme; call admission control policy; hierarchical scheduling algorithm; min-max fairness approach; unbalanced traffic; wirelessMAN-OFDM physical layer; Adaptive control; Bandwidth; Channel allocation; Downlink; Media Access Protocol; Mobile communication; Programmable control; Proposals; Scheduling algorithm; Wireless networks; CAC; IEEE 802.16; Min-Max fairness; OFDM; QoS; TDD; performance evaluation; scheduling;

fLanguage

English

Publisher

ieee

Conference_Titel

Mobile Adhoc and Sensor Systems, 2007. MASS 2007. IEEE International Conference on

Conference_Location

Pisa

Print_ISBN

978-1-4244-1454-3

Electronic_ISBN

978-1-4244-1455-0

Type

conf

DOI

10.1109/MOBHOC.2007.4428651

Filename

4428651