Adaptive bandwidth estimation and allocation for DQDB MAN interworking with B-ISDN

NCUIR > College of Electrical Engineering & Computer Science > Graduate Institute of Electrical Engineering > journal & Dissertation > Item 987654321/29323

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Title:	Adaptive bandwidth estimation and allocation for DQDB MAN interworking with B-ISDN
Authors:	Wu,JS;Wang,YC
Contributors:	電機工程研究所
Date:	1996
Issue Date:	2010-06-29 20:21:47 (UTC+8)
Publisher:	中央大學
Abstract:	The main challenge for internetting LAN/MAN across B-ISDN comes from the fact that B-ISDN is connection-oriented but LANs and MANs run connectionless protocols. The critical issue is for the gateway to estimate the incoming traffic bit rate and negotiate with the B-ISDN for bandwidth allocation. In this paper we propose an adaptive estimation method for connectionless DQDB MAN interworking with B-ISDN. Due to the inherent nature of DQDB, the time window of bandwidth estimation can be adjusted dynamically. This results in a smaller fluctuation of required bandwidth estimation, so the gateway doesn't need to renegotiate frequently. In addition, based on the knowledge of bandwidth required, we propose a strategy for bandwidth allocation. Performance results are compared for the following schemes: adaptive time window, fixed time window, fixed cell window and a buffer threshold scheme. It shows that the proposed scheme performs better than other such schemes.
Relation:	COMPUTER COMMUNICATIONS
Appears in Collections:	[Graduate Institute of Electrical Engineering] journal & Dissertation

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