Optimal policies for handoff and channel assignment in networks of LEO satellites using CDMA
Wireless Networks - Special issue: hybrid and satellite communication networks
Optimal Resource Management in Wireless Multimedia Wideband CDMA Systems
IEEE Transactions on Mobile Computing
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A dynamic programming formulation is used to obtain an optimal strategy for the handoff problem in cellular radio systems. The formulation includes the modeling of the underlying randomness in received signal strengths as well as the movements of the mobile. The cost function is designed such that there is a cost associated with switching and a reward for improving the quality of the call. The optimum decision is characterized by a threshold on the difference between the measured power that the mobile receives from the base stations. Also we study the problem of choosing the “best” fixed threshold that minimizes the cost function. The performance of the optimal and suboptimal strategies are compared