Managing multi-priority services in ubiquitous computing applications Online publication date: Tue, 28-Sep-2010
by Ibrahim Kamel, Mohamed Saad, Sanaa A. Muhaureq
International Journal of Internet Protocol Technology (IJIPT), Vol. 5, No. 3, 2010
Abstract: Applications in ubiquitous computing environments are expected to have different priorities, memory and real-time requirements. Given a home gateway with a set of running services, we need to terminate some of the existing services to allow a more important service to start. This paper presents heuristics for service replacement that try to terminate the least number of low priority services. Moreover, we develop an integer linear programming (ILP) formulation to use it as a benchmark, against which the quality of solutions obtained by our proposed algorithms is assessed. Our simulation results indicate that the proposed algorithms outperform the traditional memory management techniques in terms of the quality of the obtained solutions. In fact, the performance of the proposed heuristics is close to that of the lower bound achieved by the ILP solution, while the execution times of the proposed algorithms were close to that of the traditional memory management techniques.
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