Abstract
In wireless networks current standard MAC layer protocols don’t provide any error correction scheme for broadcast/multicast. In this paper, we enhance a Leader Based Protocol (LBP) and propose a Beacon-driven Leader Based Protocol (BLBP) for the MAC layer multicast error control. To guarantee a very low Packet Loss Ratio (PLR) under strict delay constraints for video multicast over a Gilbert-Elliott (GE) channel, we analyze BLBP and compare it with LBP and different application layer multicast error control schemes via simulation experiments. Both the theoretical analysis and simulation results show that BLBP can correct nearly all the errors for all receivers in the MAC layer and is more efficient than LBP. BLBP is also more efficient than the application layer Automatic Repeat request (ARQ) scheme and the total multicast delay is much shorter. BLBP is very good for real-time multicast applications with strict delay constraints.
Highlights
With the rapid development of wireless networking technologies, it is becoming possible to supply wireless terminal users with data connections, and with real-time communication services
On erroneous reception (The timer times out) of the data frame that has not been correctly received before, the non-leader receivers send negative acknowledgements (NACKs) to collide with the potential ACK from the leader, prompting the access points (AP) to retransmit the packet
To guarantee a very low Packet Loss Ratio (PLR) under strict delay constraints for video multicast over a GE channel with both the temporal error correlation and the spatial error correlation, we analyze Beacon-driven Leader Based Protocol (BLBP) and evaluate its performance via simulation experiments. Both the theoretical analysis and simulation results show that BLBP can correct most the errors for all receivers in the MAC layer
Summary
With the rapid development of wireless networking technologies, it is becoming possible to supply wireless terminal users with data connections, and with real-time communication services. The emerging real-time multicast applications in wireless networks include the local distribution of High Definition TV (HDTV) and Digital Video Broadcasting (DVB) [1], video-on demand, video conferencing, gaming, local VoIP, IPTV, Internet-Radio distribution, P2P broadcasting, etc Most of these applications require a very low Packet Loss Ratio (PLR) under strict delay constraints. The non-leader receivers send NACKs whenever the received frame is in error, regardless of whether this erroneous frame has been received correctly before or not This is because the receivers in LBP can not access the data frame sequence number before the frame is received, as there is no such field in the structure of RTS/CTS frames for multicast. To guarantee a very low PLR under strict delay constraints for video multicast over a GE channel, we analyze BLBP and compare it with LBP and two application layer multicast error control schemes via simulation experiments.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: International Journal of Communications, Network and System Sciences
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.
