【摘要】 在移动通信系统中,移动性管理即位置管理是一个具有挑战性的研究内容。移动台越区漫游规律的研究,对评价各种位置管理策略的代价及性能有着重要意义。通过构造向量马氏过程,利用密度演化方法,我们导出了移动台越区次数的一个概率公式,并用此公式对现行的位置管理策略及指针推进策略的代价进行了研究。更多还原

【Abstract】 Mobility management is a challenging topic in mobile computing environment. Studying the situation of a mobile crossing the boundaries of location areas is significant to evaluate the cost and performance of strategies of location management. Utilizing the density evolution method of vector Markov processes, we propose a probability formula of the number of the location areas crossed by a mobile. Based on the probability formula, the cost of the Basic Location Management Scheme with that of the Pointer Forwarding is compared and discussed.更多还原