Introduction of IPv6 protocol in IEEE 802.16e based network without any modification could occur many problems due to IEEE
802.16 standard’s point-to-multipoint and connection oriented features and absent of the native multicast support. In this
paper, we propose a method for supporting address autoconfiguration and DAD mechanism to the IPv6 nodes in IEEE 802.16e based
network. The proposed scheme uses multicast and broadcast service (MBS) and the service’s transport connection identifiers
(MCIDs) and assigns them to the IPv6 node as soon as the nodes complete the layer 2 handover. Using the proposed scheme, IPv6
nodes in IEEE 802.16e network can exchange the ND messages sent to the multicast address. We analyze the network resource
usages for the existing method and the proposed scheme. Through the performance evaluation, we see that the proposed scheme
can reduce the whole network resource usage up to maximum 32 percent.
[Show abstract][Hide abstract] ABSTRACT: Multimedia stream service provided by broadband wireless networks has emerged as an important technology and has attracted much attention. An all-IP network architecture with reliable high-throughput air interface makes orthogonal frequency division multiplexing access (OFDMA)-based mobile worldwide interoperability for microwave access (mobile WiMAX) a viable technology for wireless multimedia services, such as voice over IP (VoIP), mobile TV, and so on. One of the main features in a WiMAX MAC layer is that it can provide'differentiated services among different traffic categories with individual QoS requirements. In this article, we first give an overview of the key aspects of WiMAX and describe multimedia broadcast multicast service (MBMS) architecture of the 3GPP. Then, we propose a multicast and broadcast service (MBS) architecture for WiMAX that is based on MBMS. Moreover, we enhance the MBS architecture for mobile WiMAX to overcome the shortcoming of limited video broadcast performance over the baseline MBS model. We also give examples to demonstrate that the proposed architecture can support better mobility and offer higher power efficiency.
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