Abstract
Although the medium access control (MAC) protocol and the physical layer are well defined in IEEE 802.16 standard, bandwidth allocation (BA) and connection admission control (CAC) remain as open research issues. In this paper, we present a joint adaptive bandwidth allocation and connection admission control method for real-time and non-real-time polling services in the IEEE 802.16-based broadband wireless networks which use adaptaive modulation and coding at the physical layer. This method is based on an optimization-based approach where the in-connection (i.e., packet-level) performances (i.e., delay and transmission rate for real-time and non-real-time polling services, respectively) are used as cost functions and decision criteria for allocating bandwidth and for accepting or blocking a new connection, respectively. A queueing model is used to analyze transmission delay and transmission rate under adaptive modulation and coding. Binary integer programming is used to obtain the solutions for the optimization formulation. Typical performance results demonstrate the superiority of the proposed scheme over traditional static and adaptive band-width allocation schemes.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.