TY - GEN
T1 - A call admission and rate control scheme for multimedia support over IEEE 802.11 wireless LANs
AU - Zhai, Hongqiang
AU - Chen, Xiang
AU - Fang, Yuguang
N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].
PY - 2004
Y1 - 2004
N2 - In this paper, we proposed a novel call admission and rate control (CARC) scheme. Unlike previous research works that are focused on providing service differentiation in the contention-based 802.11 DCF, we aim to support stringent QoS requirements of real-time and streaming traffic. The key idea of this scheme is to regulate the arriving traffic of the WLAN such that the network can work at an optimal point. We first show that the channel busyness ratio is a good indicator of the network status in the sense that it is easy to obtain and can accurately and timely represent channel utilization. Then we propose two algorithms that function upon the use of the channel busyness ratio. The call admission control algorithm is used to regulate the admission of real-time or streaming traffic and the rate control algorithm to control the transmission rate of best effort traffic. A comprehensive simulation study in ns-2 has verified the performance of our proposed CARC scheme, showing that the original 802.11 DCF protocol can statically support strict QoS requirements, such as those required by voice over IP or streaming video, and at the same time, achieve a high channel utilization. © 2004 IEEE.
AB - In this paper, we proposed a novel call admission and rate control (CARC) scheme. Unlike previous research works that are focused on providing service differentiation in the contention-based 802.11 DCF, we aim to support stringent QoS requirements of real-time and streaming traffic. The key idea of this scheme is to regulate the arriving traffic of the WLAN such that the network can work at an optimal point. We first show that the channel busyness ratio is a good indicator of the network status in the sense that it is easy to obtain and can accurately and timely represent channel utilization. Then we propose two algorithms that function upon the use of the channel busyness ratio. The call admission control algorithm is used to regulate the admission of real-time or streaming traffic and the rate control algorithm to control the transmission rate of best effort traffic. A comprehensive simulation study in ns-2 has verified the performance of our proposed CARC scheme, showing that the original 802.11 DCF protocol can statically support strict QoS requirements, such as those required by voice over IP or streaming video, and at the same time, achieve a high channel utilization. © 2004 IEEE.
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UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-19644383215&origin=recordpage
U2 - 10.1109/qshine.2004.1
DO - 10.1109/qshine.2004.1
M3 - RGC 32 - Refereed conference paper (with host publication)
SN - 0769522335
SN - 9780769522333
T3 - Proceedings - First International Conference on Quality of Service in Heterogeneous Wired/Wireless Networks, QShine 2004
SP - 76
EP - 83
BT - Proceedings - First International Conference on Quality of Service in Heterogeneous Wired/Wireless Networks, QShine 2004
T2 - Proceedings - First International Conference on Quality of Service in Heterogeneous Wired/Wireless Networks, QShine 2004
Y2 - 18 October 2004 through 20 October 2004
ER -