Open AccessOFDMA‐Based Reliable Multicast MAC Protocol for Wireless Ad‐Hoc Networks
Author(s) -
Kim Sung Won,
Kim ByungSeo
Publication year - 2009
Publication title -
etri journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.295
H-Index - 46
eISSN - 2233-7326
pISSN - 1225-6463
DOI - 10.4218/etrij.09.0208.0236
Subject(s) - computer network , multicast , reliable multicast , computer science , protocol independent multicast , pragmatic general multicast , source specific multicast , ip multicast , unicast , xcast , wireless ad hoc network , distance vector multicast routing protocol , distributed computing , wireless , telecommunications
Compared with unicast, multicast over wireless ad‐hoc networks do not support reliability due to their inability to exchange request‐to‐send/clear‐to‐send (RTS/CTS) and ACK packets with multiple recipients. Although several media access control (MAC) layer protocols have been proposed to provide reliable multicast, these introduce additional overhead, which degrades system performance. A novel MAC protocol for reliable wireless multicast is proposed in this paper. By adapting orthogonal frequency division multiple access characteristics in CTS and ACK packets, the protocol achieves reliability over wireless multicast with minimized overhead.