partially supported by the Funds for Creative Research Groups of China(61121061);National Natural Science Foundation of China(61302078,61272515);863 Program(2011AA01A102);Ph.D.Programs Foundation of Ministry of Education of China(20110005110011);Beijing Higher Education Young Elite Teacher Project(YETP0476);Fundamental Research Funds for the Central Universities(2012RC0609)
An approach to make heterogeneous devices cooperate with each other to provide ubiquitous service remains a longstanding challenge in ubiquitous environments. In addition, when multi-user request ubiquitous services s...