sponsored by IEEE Communications Society and the Dallas IEEE Sections. sponsored by IEEE Communications Society and IEEE Chicago Section. sponsored by the IEEE Communications Society and the Philadelphia Section IEEE. sponsored by the IEEE Communications Society and the Philadelphia Section of IEEE. sponsored by IEEE Communications Society and Houston IEEE, Galveston Bay IEEE Sections. sponsored by the IEEE Communications Society and the Seattle Section of IEEE. sponsored by the Communications Society of the IEEE. sponsored by IEEE Computer Society and IEEE Philadelphia Section. sponsored by IEEE Communications Society Conference Board and Twin Cities Section of IEEE.