Leader-Based Rate Adaptive Multicasting for Wireless LANs

—Multicasting is useful for various applications such as multimedia broadcasting. In current 802.11, multicast frames are sent as broadcast frames at a low transmission rate without any acknowledgement or binary exponential backoff. This naive multicasting mechanism degrades the performance of not only multicast flows but also unicast flows. In this paper, we propose a new multicasting mechanism based on the leaderbased approach to improve the legacy multicast transmissions, maintaining coexistence with legacy 802.11 devices. Simulations show that our protocol achieves well-balanced performance in terms of reliability, latency, goodput, and transmission fairness in comprehensive environments.

• Type: Conference
• Year: 2007
• Where: GLOBECOM
• Authors: Sungjoon Choi, Nakjung Choi, Yongho Seok, Taekyoung Kwon, Yanghee Choi
• Keywords: GLOBECOM 2007, Legacy Multicast Transmissions, Multicasting Mechanism, Naive Multicasting Mechanism, Telecommunications