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Wireless mesh networks (WMNs) have been increasingly used to carry multimedia traffic with flow requirements. The performance of multi-radio multi-channel (MRMC) WMNs largely depends on the routing and channel assignment. Because routing and channel decisions are coupled, they need to be jointly optimized to achieve the best performance. This is the so-called routing and channel assignment (RCA) problem,...
This paper deals with an optimal control problem for a class of singularly perturbed time-delay large-scale systems. The optimal control laws for the order-reduced slow subsystem with time-delay and fast subsystem are designed, respectively. For the slow subsystem, the sensitivity approach is proposed to solve the coupled two-point boundary value (TPBV) problem with both time delay and advance terms...
The state feedback robust H-infinity control problem is investigated for discrete-time state delay switched linear descriptor systems with exponential uncertainties in this note. Aiming at the effect of exponential uncertainties, we first treats the uncertain exponential terms as polynomial uncertainty with an additive norm bounded uncertainty based on Taylor series approximation and convex polytope...
To satisfy the multiple QoS constraints in different services, we divide a QoS routing problem into some multicast routing problem oriented the types of QoS service callings. Every multicasting routing problem is a Steiner tree problem. In this paper, we propose a dynamic QoS routing mechanism (DQ) to support multiple Steiner trees. We also propose a protocol to distinguish between the types of services...
With the development of the space technology, the low performance of the on-board computing becomes a bottleneck of the satellite networks. To solve this problem, we proposed a new QoS routing scheme for LEO satellite networks based on ground station in this paper. This routing scheme is off-line and based on prediction. The most computing task of the routing scheme will be implemented on the ground...
In this paper, we present an efficient rate-guaranteed opportunistic scheduling (ROS) scheme, which optimizes the system throughput performance while satisfying the ldquofairnessrdquo constraint for resource allocation by exploiting time-varying channel states. We prove the optimality of the proposed scheduler via mathematical analysis and show that it has lower computational complexity compared with...
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