Performance and scalability evaluation of IEEE 802.11v/aa multicast transport

• Published in: Wireless communications and mobile computing Vol. 16; no. 14; pp. 1987 - 2000
• Main Authors: Daldoul, Yousri, Meddour, Djamal‐Eddine, Ahmed, Toufik, Boutaba, Raouf
• Format: Journal Article
• Language: English
• Published: Oxford Hindawi Limited 10.10.2016
• Subjects: Computer simulation; DMS; GCR‐block ack; GCR‐unsolicited retries; IEEE 802.11aa; IEEE 802.11v; Mathematical analysis; Mobile communication systems; Multicast; Policies; Proposals; Transport; Wireless networks
• DOI: 10.1002/wcm.2663
• ISSN: 1530-8669

IEEE 802.11v and 802.11aa are two recent amendments that define new functionalities in order to support a reliable multicast transport over wireless networks. The first amendment introduces directed multicast service (DMS). On the other hand, 802.11aa defines the groupcast with retries (GCR) service, which proposes two retransmission policies: block acknowledgement (GCR‐BACK) and unsolicited retry (GCR‐UR). In this paper, we evaluate the throughput and the scalability of these new proposals using both analytical and simulation approaches. We show that DMS has the lowest scalability, while GCR‐BACK is not appropriate for groups with a large number of receivers. We conclude that GCR‐UR is the most appropriate for large groups. However, increasing the number of transmission retries reduces significantly the achieved throughput of the unsolicited retry policy. Copyright © 2016 John Wiley & Sons, Ltd. IEEE 802.11v and 802.11aa are two recent amendments that define new functionalities to enhance the reliability of multicast transmissions over wireless networks. They define three new retransmission policies: directed multicast service, groupcast with retries (GCR) block acknowledgement (GCR‐BACK), and GCR unsolicited retry (GCR‐UR). This paper evaluates the throughput and the scalability of these new proposals using both analytical and simulation approaches.