Title :
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
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;
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
DOI :
10.1109/MOBHOC.2007.4428651
