A reservation principle with applications to the ATM traffic control
Computer Networks and ISDN Systems - Special issue on the ATM—asynchronous transfer mode
Adaptive VBR video traffic management for higher utilization of ATM networks
ACM SIGCOMM Computer Communication Review
A gamma-based framework for modeling variable-rate MPEG video sources: the GOP GBAR model
IEEE/ACM Transactions on Networking (TON)
Traffic Parameter Control for MPEG Video Traffic in ATM Networks
ISCC '97 Proceedings of the 2nd IEEE Symposium on Computers and Communications (ISCC '97)
VBR video traffic management using a predictor-based architecture
Computer Communications
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In this paper, a PERIODIC allocation protocol, called Anticipated Traffic Allocation Protocol (ATAP) for real time VBR traffic is proposed. The main objective of this protocol is to dynamically allocate the available bandwidth to real-time VBR sources, i.e. to be more efficient than the CBR allocation and at the same time more secure thnt the "walk-in" allocation. The ATAP unit is located at the network entry node between the real-time encoder and the applied bandwidth allocation protocol in the network, here the Fast Reservation Protocol FRP/DT. This reservation protocol cannot satisfy the real-time requirements, since the source would have to wait at least a round trip delq to reserve a required bandwidth increase. Hence, the ATAP proposes to anticipate and allocate the bandwidth one period in advance. This permits the encoder to adjust its coding bit rate according to network loading condition. Doing so, a congestion will gracefully degrading the subjective quality of the signal, instead of "blindly" loosing cells at the network entry node. A minimum bit rate negotiated at the connection set-up is always guaranteed to assure the connection continuity in the case of refusal of bandwidth reservation. On the network side, the ATAP interacts with the FRP/DT. Reservation failures are used as congestion indicators to control the entering traffic and to adjust the cell priority. A simulation analysis investigates the performance of the ATAP and its interaction with the FRP/DT for two real MPEG VBR audio sequences under different bit rate anticipation approaches.