Voice over IP, 2000

Item — Call Number: MU Thesis Ash

Identifier: b2194800

Staff Only

Scope and Contents

From the Collection:

The collection consists of theses written by students enrolled in the Monmouth University graduate Electrical Engineering program. The holdings are bound print documents that were submitted in partial fulfillment of requirements for the Master of Science degree.

Dates

Creation: 2000

Creator

Ashara, Haresh (1974- ) (Author, Person)
Bhatia, Randeep Singh (Thesis advisor, Person)

Conditions Governing Access

The collection is open for research use. Access is by appointment only.

Access to the collection is confined to the Monmouth University Library and is subject to patron policies approved by the Monmouth University Library.

Collection holdings may not be borrowed through interlibrary loan.

Research appointments are scheduled by the Monmouth University Library Archives Collections Manager (723-923-4526). A minimum of three days advance notice is required to arrange a research appointment for access to the collection.

Patrons must complete a Researcher Registration Form and provide appropriate identification to gain access to the collection holdings. Copies of these documents will be kept on file at the Monmouth University Library.

Extent

1 Items (print book) : 86 pages ; 8.5 x 11.0 inches (28 cm).

Language of Materials

English

Additional Description

Abstract

This project represents the simulated model of voice over IP in Mobile communications. In the Global System for Mobile Communication (GSM) infrastructure the signaling entities like Mobile Switching Center (MSC), Visitor Location Register (VLR) and Home Location Register (HLR) uses Mobile Application Part (MAP), which sits on the top of Transaction Capabilities Application Part (TCAP) of Signaling System no. 7.

The current GSM infrastructure uses MAP and TCAP part of SS7 for message exchange between signaling entities. In voice over IP domain this MAP part can be replaced by IP. It means that the MAP & TCAP messages can be wrapped in TCP/IP wrapper and can be used to communicate between signaling entities through IP world.

In this project it is shown that the VLR and HLR exhange messages in IP format, but in real world, VLR and HLR uses SS7 for messaging so we need SS7 to IP gateway between VLR and MSC as seen in figure A below.

[Note: the referenced diagram is not included in this digital transcription of the thesis abstract.]

Many procedures of GSM use MAP. (These procedures are explained in GSN standard document no. 09.02). The idea is to show MSC working in IP environment. The project implements a detailed Registration procedure that registers the mobile station - when it is powered ON or when it changes the cell location. The whole project implementation is in Java. It simulates the entities like MS, MSC, VLR, HLR and takes care of encoding, decoding of IP messages exchanged between those entities.

Partial Contents

Abstract -- 1. Introduction -- 2. Introduction to Global System for Mobile communication (GSM) -- 3. SS7 (Signaling System No. 7) protocol -- 4. Transaction Capabilities Applications Part (TCAP) -- 5. Application and use of MAP -- 6. Registration -- 7. Program description -- 8. Conclusion -- Acronym list -- Bibliography -- Appendix A. Message format -- Appendix B. Tag identifiers -- Appendix C. Figures -- Appendix D. Program code in JAVA & program output.