H. Du, Q. Ye, and W. Lee's paper has been accepted for publication in the proceedings of 30th IEEE Conference on Computer Communications (IEEE INFOCOM'2011), Shanhai, China, April 2011.
L. Ding, W. Wu, and W. Lee's paper has been accepted for publication in the proceedings of 30th IEEE Conference on Computer Communications (IEEE INFOCOM'2011), Shanhai, China, April 2011.