A simple architecture for intelligent multiplexing in a voice-oriented tactical ATM network

Hoe, B.W.

doi:10.1109/milcom.1994.473992

Cited by 1 publication

(2 citation statements)

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“…DBA allows circuits access to unused bandwidth, thereby using bandwidth more efficiently. Hoe states, "The objective of ATM switching is to statistically multiplex traffic from different users (assign bandwidth on demand), to utilize bandwidth efficiently, and to satisfy the QoS requirements of delay and loss for different traffic types" [Hoe94]. Given the scenario outlined above, the VTC circuit would consume the maximum bandwidth it requests when in use; when not in use, the bandwidth could be allocated to other circuits based on demand.…”

Section: -1mentioning

confidence: 99%

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Performance analysis of a dynamic bandwidth allocation algorithm in a circuit-switched communications network

Schwamb¹,

Baldwin²,

Raines³

et al.

MILCOM 2002. Proceedings

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Military communications networks typically employ a gateway multiplexer to aggregate all communications traffic onto a single link. These multiplexers typically use a static bandwidth allocation method via time-division multiplexing (TDM). Inefficiencies occur when a high-bandwidth circuit, e.g., a video teleconferencing circuit, is relatively inactive rendering a considerable portion of the aggregate bandwidth wasted while inactive. Dynamic bandwidth allocation (DBA) reclaims unused bandwidth from circuits with low utilization and reallocates it to circuits with higher utilization without adversely affecting queuing delay. The proposed DBA algorithm developed here measures instantaneous utilization by counting frames arriving during the transmission time of a single frame on the aggregate link. The maximum calculated utilization observed over a monitoring period is then used to calculate the bandwidth available for reallocation. A key advantage of the proposed approach is that it can be applied now and to existing systems supporting heterogeneous permanent virtual circuits. With the inclusion of DBA, military communications networks can bring information to the warfighter more efficiently and in a shorter time even for small bandwidths allocated to deployed sites. The algorithm is general enough to be applied to multiple TDM platforms and robust enough to function at any line speed, making it a viable option for high-speed multiplexers. The proposed DBA algorithm provides a powerful performance boost by optimizing available resources of the communications network. Utilization results indicate the proposed DBA algorithm significantly out-performs the static allocation model in all cases. The best configuration uses a 65536 bps allocation granularity and a 10 second monitoring period. Utilization gains observed with this configuration were almost 17\% over the static allocation method. Queuing delays increased by 50% but remained acceptable, even for real-time traffic. Subject Terms Report Classification unclassified Classification of this page unclassified Classification of Abstract unclassified Limitation of Abstract UU Number of Pages216

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Section: -1mentioning

confidence: 99%

“…If not, it is rejected. There are also other schemes used in admission control including statistical multiplexing [Hoe94] and priority allocation [SWS98]. Circuit switching can be further broken down into conventional circuit switching and virtual circuit switching.…”

Section: Circuit-switched Networkmentioning

confidence: 99%