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FUNDAMENTALS OF QUEUEING THEORY

FIFTH EDITION




JOHN F. SHORTLE

Professor of Systems Engineering & Operations Research

George Mason University

JAMES M. THOMPSON

Enterprise Architect

Freddie Mac

DONALD GROSS

Formerly of

George Mason University

Professor Emeritus

The George Washington University

CARL M. HARRIS

Late of

George Mason University



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PREFACE

The first edition of Fundamentals of Queueing Theory, written by Donald Gross and Carl Harris, was published in 1974. Since then, a new edition has appeared approximately once every ten years. In 2005, Donald Gross invited us (John Shortle and James Thompson) to help with a new edition, and we appreciate the opportunity to continue updating this excellent work. The changes in the fifth edition reflect the feedback from numerous students and colleagues since the fourth edition. Almost all of the material from the fourth edition has been kept, but with a fair amount of editing and reorganization. Several new sections have been added. We hope that the changes continue to bring improvements to the text.

One major change is that the first chapter from the fourth edition has been expanded and split into two chapters. The new Chapter 1 contains introductory material specific to queueing theory, while the new Chapter 2 contains general material on stochastic processes. In Chapter 1, a key addition is an expanded and more prominent section on Little's law. The treatment is more rigorous with multiple examples, a geometric proof, and extensions including the distributional form of Little's law and H = λG. Chapter 1 also contains a new section on the psychology of waiting. In Chapter 2, the material on stochastic processes is rewritten and reorganized substantially from the fourth edition. The reorganization makes it more natural for someone who has covered the material elsewhere to skip the chapter. And for a reader who is less familiar with the material, the chapter provides a concise treatment of essential results that are used throughout the text.

The chapter on advanced Markovian models (now Chapter 4) has been edited substantially and contains a new section on fairness in queueing as well as a discussion of processor sharing. The chapter on bounds and approximations (now Chapter 8) includes a new section on fluid queues. Many new examples and problems have been added throughout the text (over 20 new examples and over 60 new problems). Finally, the QtsPlus software has been been updated to run on the latest versions of Excel for both PCs and Macs. The user interface has also been improved significantly.

For errata, updates, and other information about the text and associated QtsPlus software, see the text website:

 < http://mason.gmu.edu/∼jshortle/fqt5th.html>.

John F. Shortle
James M. Thompson

Fairfax, Virginia
October 2017

ACKNOWLEDGMENTS

We are grateful for the opportunity participate in the writing of the fourth and fifth editions and acknowledge the enormous amount of work carried out by the original authors, Donald Gross and Carl Harris, in writing the first three editions. We humbly acknowledge that we stand on the shoulders of giants and hope that the changes made in the recent edition continue to improve the quality of the textbook.

We are grateful for the assistance given to us by many professional colleagues and students whose numerous comments and suggestions have been so helpful in improving this text. With heartfelt thanks, we extend special appreciation to our families for their unlimited and continuing encouragement and to all the people at John Wiley & Sons who have been wonderfully supportive. John also appreciates the support of the Volgenau School of Engineering and the Department of Systems Engineering and Operations Research at George Mason University.

J. F. S.

J. M. T.

ABOUT THE COMPANION WEBSITE

This book is accompanied by a companion website:

www.wiley.com/go/shortle/queueingtheory5e

The Student's website includes:

The Instructor's website (password protected with ProfVal Validation) includes: