ARSM: auto rate selection multicast mechanism for multi-rate wireless LANs

Authors:
José Villalón;Yongho Seok;Thierry Turletti;Pedro Cuenca;Luis Orozco-Barbosa
Affiliations:
Instituto de Investigación en Informática de Albacete, Universidad de Castilla-La Mancha, Albacete, Spain;Institut National de Recherche en Informatique et en Automatique, INRIA, Sophia Antipolis, France;Institut National de Recherche en Informatique et en Automatique, INRIA, Sophia Antipolis, France;Instituto de Investigación en Informática de Albacete, Universidad de Castilla-La Mancha, Albacete, Spain;Instituto de Investigación en Informática de Albacete, Universidad de Castilla-La Mancha, Albacete, Spain
Venue:
PWC'06 Proceedings of the 11th IFIP TC6 international conference on Personal Wireless Communications
Year:
2006

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Abstract

Multicast is an efficient paradigm for transmitting data from a sender to a group of receivers. The IEEE 802.11 wireless LANs standards specify how to send multicast frames with no ACK and using one of the Basic Service Set (BSS) rates. This situation has led many researchers to design techniques aiming to improve reliability of a multicasting mechanism. The Leader-Base Protocol (LBP) is one such mechanism proposed in the literature that is the most promising approach. The main idea behind the design of the LBP mechanism is to reduce the probability of collision of the feedback messages sent by the multicast group members. However, the LBP mechanism falls short by not considering the varying conditions characterizing the wireless channels. In this paper, we introduce a novel auto rate selection multicast mechanism for multi-rate wireless LANs, namely ARSM (Auto Rate Selection for Multicast), capable of adapting the data transmission to the varying conditions of the channel. Our simulation results show that our new scheme outperforms the IEEE 802.11 and the LBP mechanisms.