Provided by: mecs-press
WiMAX based on IEEE 802.16 is known as one of effective technologies for transmission of multimedia to groups of receivers. There are two operational modes in WiMAX: Point to Multi Point (PMP) for single hop transmission and a mesh node for multi-hop transmission. The current standard only defines unicast transmission under mesh mode thus the performance is deteriorated for multimedia applications with multicast nature. In this paper, the authors first propose a mechanism for source-based tree topology construction aiming at facilitating multicast transmission in WiMAX mesh network.