This paper studies how to design a stabilizing AQM in supporting TCP (Transmission Control Protocol) with arbitrary delays. For the well-known AIMD (Additive Increase Multiplicative Decrease) dynamic model of TCP, our study shows that we can compensate for arbitrary delays explicitly by applying a modified virtual queue dynamics that makes the equilibrium queuing delay zero. This study also ver...

Switch-based interconnects are used in a number of application domains including parallel system interconnects, local area networks, and wide area networks. However, very few switches have been designed that are suitable for more than one of these application domains. Such a switch must offer both extremely low latency and very high throughput for a variety of different message sizes. While som...

Collective communication performance is critical for many applications. In this paper, we present an architecture to efficiently support collective operations (like multicasts and reductions) in the switches of parallel computer interconnects. We present an output queuing switch architecture with cross-point buffering. Output queuing architectures have been less popular in the past as they requ...

Output queued switches are appealing because they have better latency and throughput than input queued switches. However, they are difficult to build: a direct implementation of an N × N output-queued switch requires the switching fabric and the packet memories at the outputs to run at N times the line rate. Attempts have been made to implement output queuing with slow components, e.g., by havi...

Elasticity is one of key features of cloud computing. Elasticity allows Software as a Service (SaaS) applications’ provider to reduce cost of running applications. In large SaaS applications that are developed using service-oriented architecture model, each service is deployed in a separated virtual machine and may use one or more services to complete its task. Although, scaling service indepen...

Many proposals of input queuing cell switch architectures have recently appeared in the literature. Some have found application in commercial very high speed IP routers. In this paper we discuss the pros and cons of input and output queuing switch architectures, we provide a taxonomy of scheduling algorithms for input queuing switches, and we present comparative performance results for some of ...

Many proposals of input queuing cell switch architectures have recently appeared in the literature. Some have even found application in commercial very high speed IP routers. In this paper we discuss the pros and cons of input and output queuing switch architectures, we provide a taxonomy of scheduling algorithms for input queuing switches, and we present comparative performance results for som...

Advanced input queuing is an attractive, promising architecture for high-speed ATM switches, because it combines the low cost of input queuing with the high performance of output queuing. The need for scalable schedulers for advanced input queuing switch architectures has led to the development of efficient distributed scheduling algorithms. We introduce a new distributed scheduling algorithm, ...

With the advent of small cell networks (SCNs) to support growing wireless data volumes and thus reduced cell sizes, cooperative communications are significantly facilitated. Applicable to 3GPP LTE-A, we propose a novel channel/queue-aware user pairing and scheduling scheme in a cooperative virtual multiple-input multiple-output (VMIMO) system. The queueing performance of the VMIMO system with t...

A new conceptual architecture for low-level neural pattern recognition is presented. The key ideas are that the brain implements support vector machines and that support vectors are represented as memory patterns in competitive queuing memories. A binary classifier is built from two competitive queuing memories holding positive and negative valence training examples respectively. The support ve...