Bandwidth Allocation for Transmission of Real-time Messages in Burst Mode over Ieee 802.12 Network
نویسندگان
چکیده
In IEEE 802.12 network, a repeater arbitrates the network access contentions among the nodes on round robin basis. The node having received a grant from the repeater, can transmit a frame. The burst mode, a newly approved feature in IEEE 802.12 network, allows a node to transmit multiple frames per grant. This paper proposes a bandwidth allocation scheme based on the burst mode to guarantee the deadlines of periodic real-time messages. Once the bandwidth of each node is derived from the lengths and deadlines of periodic messages, a node can transmit the frames up to the allocated bandwidth per grant. Simulation study shows that the proposed scheme provides much higher guarantee ratio and graceful degradation for high network load, compared with the existing approaches.
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