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When there's heavy traffic passing off-ramp of urban freeway and close to joint section, the intersection and the passage of the side road traffic will be influenced. In this paper, a coordinated control method based on the mixed logic dynamic(MLD) model will be introduced using bi-level programming genetic algorithm to coordinately control the off-ramp and the downstream intersection. In bi-level...
In this paper, we introduce a hybrid strategy containing pattern search (PS) optimization and genetic algorithm (GA) to resolve the problem of power allocation in cognitive radio networks. Considering the fluctuant interference thresholds in cognitive networks, an approach for solving the problem of coexistence between licensed users and cognitive users is proposed first. Then, based on the analyses...
An adaptive resource allocation scheme for QoS oriented OFDMA system, which schedules two different utility functions for the Real-time/Non Real-time traffic simultaneously, is proposed in this paper. Instead of partial consideration of uniform kinds of QoS, we introduce an updating ratio factor to schedule users of heterogeneous traffic. Due to the complex optimization objective, the general convex...
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