Performance Analysis and Resource Allocation for IEEE 802.11 based Wireless Networks

Author

Sheng, Lingzhi ; Sun, Limin ; Zhou, Xinyun ; Ma, Jian

Author_Institution

Inst. of Software, Chinese Acad. of Sci., Beijing

fYear

2006

fDate

11-14 Sept. 2006

Firstpage

1

Lastpage

5

Abstract

In this paper, a novel performance analytical model, which uses discrete Markov and M/M/1/K theory, is presented for IEEE 802.11 based wireless networks with finite load. Delay and loss caused by MAC contention and buffer queuing are studied in detail. This model and analysis give an in-depth insight and understanding to the unfairness between uplink and downlink flows that are forwarded by access point. Futhermore, based on this model, a resource allocation scheme for access point is proposed. This hybrid scheme uses bandwidth reservation based admission control and priority scheduling to guarantee bounded delay and loss for real-time traffics. Simulation results validate the analytical model and show that our scheme can avoid congestion and provide QoS under high traffic load

Keywords

Markov processes; bandwidth allocation; quality of service; queueing theory; radio links; resource allocation; scheduling; telecommunication congestion control; telecommunication traffic; wireless LAN; IEEE 802.11 based wireless networks; M/M/1/K theory; MAC contention; QoS; access point; admission control; bandwidth reservation; buffer queuing; discrete Markov theory; downlink flows; priority scheduling; real-time traffics; resource allocation scheme; uplink flows; Admission control; Analytical models; Bandwidth; Delay; Downlink; Performance analysis; Resource management; Telecommunication traffic; Traffic control; Wireless networks;

fLanguage

English

Publisher

ieee

Conference_Titel

Personal, Indoor and Mobile Radio Communications, 2006 IEEE 17th International Symposium on

Conference_Location

Helsinki

Print_ISBN

1-4244-0329-4

Electronic_ISBN

1-4244-0330-8

Type

conf

DOI

10.1109/PIMRC.2006.254139

Filename

4022333