MobiCom 2002
The Eighth ACM International Conference on
Mobile Computing and Networking

September 23-28, 2002,
Westin Peachtree Plaza, Atlanta, Georgia, USA
Sponsored by ACM SIGMOBILE


Welcome from our General Chair

Since its inception in 1995, the MobiCom Conference has become the leading forum for experts from academia, industry and government to exchange ideas and report progress on forefront research topics on wireless networking and mobile computing. The conference became synonymous with technical excellence in seven short years and attracts the worlds' top researchers in this field.

This year we can again look forward to an exciting week of sharing technical ideas and visions with colleagues from around the world.

It was well over a year ago when the steering committee chaired by the founder of MobiCom and SIGMOBILE, Imrich Chlamtac, asked me to take the responsibility of the General Chair. First time I was involved with MobiCom as Technical Program Chair was back in 1996 when it was still in the infancy phase. This time the challenge was much greater as the conference had reached the highest peak in recent years. It has been a real honor and privilege to serve as the General Chair for MobiCom 2002 and I thank Imrich and the Committee for trusting me with this responsibility.

I want to bring an analogy between movies and conferences to your attention.

A movie makes it big if the entire team from Producers, Directors, Actors to everybody on the set work harmoniously together and give their best. I was fortunate to have an outstanding dream cast to lead the effort to make this movie.

Seeing myself as the Producer of the movie I was very fortunate to attract two best Directors, Andrew Campbell and Vaduvur Bharghavan who made this movie, i.e., created an outstanding technical program with the help of the best experts, Technical Program Committee Members, in this field. Especially there was a record of nearly 400 submissions, (i.e., writers) and Andrew and Bharghavan had the extremely difficult task of selecting best-of-the-best papers (i.e., scripts) for an extremely limited number (26) of slots. I want to express my sincere thanks to both of them. In particular, my special thanks go to Andrew who not only was a Technical Program Chair but overall he was the backbone of this conference.

I want to thank my Assistant Producers, i.e., Co-Vice Chairs, Ravi Jain and Jason Yi-Bing Lin for their immediate readiness to help out when needed.

In addition the program includes 8 informative tutorials by outstanding experts in the field brought together by Tutorial Chairs, Nitin Vaidya and Catherine Rosenberg. My thanks go to both of them. Especially Nitin's overall caring and dedication to MobiCom is highly appreciated.

Moreover, there are two panels that will provide real-time discussions and exchange of opinions amongst audience and panelists on very timely topics. The panels were put together by Ness Shroff and Marie-Jose Montpetite. I express my sincere thanks to them and also to the panelists.

We also have an exceptional student poster session (first time in this conference) put together by S. J. Lee and Elisabeth Belding-Royer. I thank them for an excellent job.

Moreover, we have 6 workshops that reflect important new research directions including the newly launched workshops on sensor networks and wireless security. Thanks for the organizers of these excellent workshops. The leading effort of Workshop General Chairs, Mehmet Ulema and Ty Znati, are also greatly appreciated.

The financial matters were in hands of Ed Knightly who did an outstanding job to keep the books orderly. Thanks to Ed.

I also express my appreciation to the registration chairs, Suresh Singh and Robin Kravets, for their efforts. I also would like to acknowledge the equally invaluable efforts and contributions of Marwan Krunz and Chuanyi Ji who publicize the conference, Ramesh Govindan for raising sponsorship for the conference through these tough times in the industry and Ron Hutchins for putting together an interesting and exciting demo/expo program.

First time this year we received a generous grant from NSF, (thanks to Ty Znati and Aubrey Bush) under the leadership of Violet Syrotiuk and Michael Yuguang Fang to support graduate students from USA to attend the conference. Violet and Mike received 82 applications and selected a very small percentage of them. Hereby I welcome these students to the conference and hope to see them as future stars in this research community. I also thank Violet and Mike for a superb job.

David Johnson was helpful with the production of proceedings and related brochures. My sincere appreciation to David for his incredible dedication to MobiCom.

Last but not least, R. Sivakumar, is the key person, to realize this conference. I also learned myself that the Local Arrangements Chair is the one, who indeed arranges everything. Special thanks go to Siva.

Finally, the support of the ACM and ACM SIGMOBILE (Executive Producers) is greatly appreciated.

You are the audience and without you there will be no movie, i.e., no conference. I thank you for attending the conference and being a part of this very important event. I sincerely hope you will like our movie. Now sit back, relax and enjoy it.

Ian F. Akyildiz
ACM MobiCom 2002 General Chair

A Message from the Technical Program Chairs

It gives us great pleasure to welcome you to ACM MobiCom 2002, the Eighth ACM International Conference on Mobile Computing and Networking in Atlanta, Georgia. MobiCom has grown in prestige since its inception in 1995 to become the leading technical meeting to hear about the latest and most exiting developments in mobile networking and computing. As the global interest in mobile and wireless research and development surges, the interest in MobiCom has grown each year. This year's response to the call for papers reflects that growing interest. We received 364 paper submissions from 28 countries, representing a growth of 30% over last year's record-breaking number of submissions.

The job of the program committee was made more difficult by the large volume of submissions. However, our program committee responded to this challenge with their willingness to go the extra mile. All submitted papers were judged based on their quality through double-blind reviewing, where the identities of the authors were withheld from the reviewers. The review process included a quick reject phase (for papers that were clearly out of scope or substandard), and, first and second round reviews. The program committee members reviewed all papers with each paper receiving three independent first round reviews. This was followed by a second round review, which promoted consensus between different reviewers. During the second round review phase there was considerable amount of online discussion for each paper in order to reach consensus, with the result that papers were either recommended to be rejected or to be further discussed at the program committee meeting. Additional reviews were sort prior to the program committee meeting particularly in the case of papers that had reviews with diverging opinions or where no consensus could be reached during the second round review phase. Prior to the meeting each paper had on average five reviews (including the second round review) from program committee members.

The program committee meeting was held at Columbia University on Monday June 24, 2002. Sixty-six papers were discussed at the meeting which started at 8.30 AM and completed with the selection of a program of 26 papers at 7.30 PM. Forty-five out of fifty program committee members were physically present at the meeting with each committee member reviewing on average 26 papers. We are indebted to the program committee for their time, effort and enthusiasm. The quality of the conference is testament to their expertise and dedication. We thoroughly enjoyed working with them.

We would like to acknowledge the efforts of a number of people who helped guide and assist us in the review process. First, we would like to thank our General Chair Ian F. Akyildiz, and past program chairs Mahmoud Naghshineh and Michele Zorzi for their assistance. We would like to thank Martha Steenstrup for chairing the committee that selected the best student paper. Finally, we would like to thank two PhD students at Columbia University who provided a considerable amount of help to us. Between them, Stephen T. Chou and Michael E. Kounavis designed and managed the MobiCom 2002 website, and tailored and managed the EDAS paper review system.

We are extremely pleased with the final technical paper program and would like to thank all the authors that submitted papers to MobiCom 2002. The selected papers cover a broad range of topics that attendees will find of great interest including sessions on security, media access control, transport layer issues, WLANs, sensor networks, energy efficient systems, wireless QOS, systems issues, and future research challenges. The paper program is complemented by informative tutorials, thought provoking panels, an exceptional student poster session (new to MobiCom), and workshops that reflect important new research directions.

We hope you will find the conference insightful and enjoyable. We look forward to meeting you in Atlanta!

Vaduvur Bharghavan
Meru Networks

Andrew T. Campbell
Columbia University