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—We explore the design of a logically centralized but physically distributed control plane for 4D architecture. 4D architecture proposes centralization of network-wide decision making state and logic in a logical control plane to ease the management complexity of data networks. However, the current design implementations of the 4D control plane are limited(More)
We provide a design of a control and management plane for data networks using the abstraction of 4D architecture, utilizing and extending 4D's concept of a logically centralized Decision plane that is responsible for managing network-wide resources. In this paper, a scalable protocol and a dynamically adaptable algorithm for assigning Data plane devices to(More)
This paper discusses multi-criteria optimization of the 4 links of an 8 DOF haptic master device for a minimally invasive surgery. In minimally invasive surgery, because of limited information from surgical scene, sensation of feedback force and manipulability of device are important factors during surgery. Therefore, optimization of the device is required(More)
This paper discusses optimization of the 4 links of an 8 DOF haptic master device in order to minimize dynamics effects of the device on human hand during minimally invasive surgical operation. In minimally invasive surgery, because of limited information from surgical scene, sensation of feedback force and manipulability of device are important factors to(More)
—We investigate the design of a clean-slate control and management plane for data networks using the abstraction of 4D architecture, utilizing and extending 4D's concept of logically centralized Decision plane that is responsible for managing network-wide resources. In this paper, a dynamically adaptable algorithm for assigning Data plane devices to a(More)
We study link scheduling in networks with small router buffers, with the goal of minimizing the guaranteed packet loss rate bound for each ingress-egress traffic aggregate (connection). Given a link scheduling algorithm (a service discipline and a packet drop policy), the guaranteed loss rate for a connection is the loss rate under worst-case routing and(More)
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