Welcome to The Fourth International Conference on Heterogeneous
Networking for Quality, Reliability, Security and Robustness. This
Conference continues the tradition of Qshine conferences in Dallas, TX,
in 2004; in Orlando, FL, in 2005; and in Waterloo, ON, in 2006.
This year, we have received 114 high quality paper submissions,
out of which we were able to accept 49 papers for presentation at the
Conference. Furthermore, the Conference features seven invited papers
from leading researchers in the area. 

The Conference is organized in 18 sessions covering the topics of
Quality of Service provisioning, QoS adaptation, modeling and
measurement, design and implementation of QoS-enabled networks,
scheduling and resource management, QoS in peer-to-peer and overlay
networks, QoS in WLAN, WPAN, WMAN and WiMAX, pricing in wired, overlay
and wireless networks,wireless sensor networks, energy efficient
protocols in wireless networks, cross-layer performance optimization,
and security protocols in wired, overlay and wireless networks. Authors
of accepted papers are coming from Asia, Europe, and North America.

The Conference owes its success to the effort and support of many
individuals. We would like to express our thanks to the General Chair,
Prof. Victor Leung of University of British Columbia, Atlanta, for his
tireless support on every issue which popped up during preparation of
the conference program. We thank Drs. Imrich Chlamtac, Yuguang (Michael)
Fang and Xuemin (Sherman) Shen for their kind guidance and conveying
their experience in conference preparation.  We thank Dr. Xi Zhang for
his efforts in publicising the conference and Dr. Qiang Zhang for her
efforts to manage final paper submissions.  We would like to thank the
program committee members and external reviewers for their professional
and timely reviews. And last but not least, we thank all the authors
for their submissions.

We hope that you will enjoy the presentations and discussions during
Qshine in Vancouver!

Guoliang Xue and Jelena Misic