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Skid-steered mobile robot has been widely used in different fields. In most of existing controllers for skid-steered mobile robots, the wheel velocities are controlled independently to track the desired velocities from the remote manipulation or high level computer. However, this kind of control method may lead to chattering phenomenon of skid steer mobile robots in practice. In this paper, the cause...
In this paper, we propose a throughput-maximum resource provision scheme in the OFDMA-based Wireless Virtual Network (WVN). The proposed scheme takes the dynamics of both traffic arrivals and wireless channels into consideration. Furthermore, we consider a more flexible service contract where average resource provision is guaranteed for each slice. As it is practically impossible to know future traffic...
Four-wheel independently driven skid-steered mobile robots are widely used in the fields of industrial automation and outdoor exploration. In most of existing controllers of skid-steered mobile robots, the wheel velocities are controlled independently to track the desired velocities from the high-level kinematic controller. However, this kind of control method may lead to chattering phenomenon of...
Splitting the control plane (C plane) and data plane (D plane) is a key feature of future cellular networks. This letter studies the energy-efficient deployment strategy to guarantee the coverage and throughput of functionality separated network. While previous works mostly focused on single-antenna networks, our focus is the performance and energy consumption of cellular networks with multi-antenna...
With the development of cloud computing, datacenter already plays increasingly important role in improving the multimedia user Quality of Experience (QoE). The resource allocation strategy, namely the virtual machines (VMs) allocation strategy, is a major research direction for cloud computing technology. In this paper, we introduce the definition of near-client-datacenter for virtual machines, which...
TBB (Thread Building Blocking) is currently a representative parallel computing platform of multi-core processors. The ant colony algorithm is used to solve combinatorial optimization problem of discrete-time systems. With the expansion of the problem scale, it often results in rapid increase of calculation. Based on TBB a parallel ant colony algorithm was researched and developed to improve the efficiency...
In recent years, BitTorrent file distribution network has been more and more widely used for media file distribution. Its build-in resource scheduling policies (local rare first, tit-for-tat, etc.) work well in file distribution in single swarm environments. However, the resource scheduling policy is missing in multiple swarms environments and the resource utilization has not been optimized. In this...
Sharing, re-purposing of learning resources are directions of e-learning system, and the developing semantic technology has potential to provide more advanced solutions for these requirements. There have been many research efforts in this direction. However, existing solutions have many weaknesses on resources usability and system availability. The paper proposes a feasible architecture for constructing...
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