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Performance analysis and design for ...

Kang, Rui.

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Performance analysis and design for dial-up Internet access systems.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Performance analysis and design for dial-up Internet access systems./
Author:	Kang, Rui.
Description:	136 p.
Notes:	Adviser: George R. Wilson.
Contained By:	Dissertation Abstracts International68-01B.
Subject:	Engineering, System Science. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3247205

Performance analysis and design for dial-up Internet access systems.
Kang, Rui.

Performance analysis and design for dial-up Internet access systems. - 136 p.

Adviser: George R. Wilson.

Thesis (Ph.D.)--Lehigh University, 2007.

Call centers and modem banks play very important roles in our information economy. Usually, if the system is full and has no buffer (modem banks) or the buffer is full (call centers) when a call arrives, the call is assumed to go away and not return. In reality, such blocked calls would usually like to try again after a short time. This situation changes the system performance. Therefore, the retrial queue model is needed.Subjects--Topical Terms:

1018128
Engineering, System Science.

Performance analysis and design for dial-up Internet access systems.
LDR:02457nam 2200289 a 45 001 967195
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035 $a (UnM)AAI3247205
035 $a AAI3247205
040 $a UnM $c UnM
100 1 $a Kang, Rui. $3 1291078
245 1 0 $a Performance analysis and design for dial-up Internet access systems.
300 $a 136 p.
500 $a Adviser: George R. Wilson.
500 $a Source: Dissertation Abstracts International, Volume: 68-01, Section: B, page: .
502 $a Thesis (Ph.D.)--Lehigh University, 2007.
520 $a Call centers and modem banks play very important roles in our information economy. Usually, if the system is full and has no buffer (modem banks) or the buffer is full (call centers) when a call arrives, the call is assumed to go away and not return. In reality, such blocked calls would usually like to try again after a short time. This situation changes the system performance. Therefore, the retrial queue model is needed.
520 $a Two issues are discussed in this dissertation: (i) the sensitivity of multiserver retrial queue models to the retrial and service time distributions, and (ii) the optimal design problem for aggregating regional modem banks (called the superPoP problem). We studied these problems in the context of dial-up Internet Service Providers (ISPs).
520 $a Usually the service duration and retrial time are assumed to be Exponentially distributed, with no assurance that the resulting performance estimate is near what will happen with the real distributions. We studied the effects of variability using phase-type service and retrial distributions in both the regular retrial queue model and the priority retrial queue model. In addition, revisit and time-dependent retrial queue model are also discussed.
520 $a We also heuristically solved the SuperPoP design problem for ISP by finding the optimal number of modems and leased third party circuits according to the cost of device and required blocking probability target. A loss network model is used to find the optimal solution. The approximated solution is obtained by using Erlang independent system and the two results are compared.
590 $a School code: 0105.
650 4 $a Engineering, System Science. $3 1018128
690 $a 0790
710 2 0 $a Lehigh University. $3 515436
773 0 $t Dissertation Abstracts International $g 68-01B.
790 $a 0105
790 1 0 $a Wilson, George R., $e advisor
791 $a Ph.D.
792 $a 2007
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3247205