Abstract
IEEE 802.16 OFDMA (orthogonal frequency division multiple access) system does not support reliable medium access control (MAC) layer multicast services. However, reliable multicast services must be supported in this system, because the status indications based on the ARQ mechanism of the subscriber stations (SSs) are required in some multicast services. Therefore, we propose a new scheme to support reliable MAC layer multicast services using cumulative ACK (CA) code and ARQ feedback request (AFR) code. In this paper, we analyze packet error rate (PER), and required uplink resources in case of our proposed scheme compared with the original scheme using unicast ARQ feedback messages against various wireless channel environments. Through the performance analysis, we can show that our scheme can save a lot of uplink resources compared with the original scheme. Using our proposed scheme, we can support reliable multicast services without a waste of a lot of uplink resources.
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.