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Many multicore and manycore architectures support hardware cache coherence. However, most of them rely on software techniques to maintain Translation Lookaside Buffer (TLB) coherence, namely the TLB shootdown routine, which is a costly procedure, known to be hardly scalable.The TSAR architecture is a manycore architecture including hardware TLB coherence, but in which the TLB coherence mechanism is...
In this paper, bidirectional modified Cûk converters are utilized as the cell equalizing circuits for serially connected lithium-ion battery packs. The battery cell equalizing system is modeled as a multi-agent system, in which the cells are considered as the nodes and their connected converters are treated as the edges. A consensus algorithm is proposed to have the modified Cûk converters work efficiently...
The prosperity of modern human civilization is attributed to the huge amount of resources and energy. With the increasing population and technological advancements, thedemand for energy will definitely continue to increase. Howto save energy has become an important issue. In this work, we proposed a system to collect the electricity usage data in campus buildings through smart meters and environmental...
Eduroam, the world-wide roaming system for research and educational institutions, has several shortcomings such as unstable and slow user authentication and weakness against network/proxy failures. We propose a disruption-tolerant authentication architecture based on the combination of certificate-based authentication and the centralized authentication system called Delegate Authentication System...
This paper motivates and sets out a framework for a high-level approach to software component integration. The framework builds on the concept of SaaS (Software as a Service) and uses a service ontology for the annotation of software components with formal specifications. The ontology is used to instruct interoperability between software components through a unified API interface. The impetus for...
An embedded multi-core stream architecture is developed to solve the intensive computation of real-time multi-target systems, such as GNSS/INS state estimation problems for multi-robot systems. A number of isomorphic stream cores are integrated in a single chip, interconnected with internal network. Each stream core employs 4 arithmetic clusters to support double precision floating point number operations...
It is well known that coordinated multi-cell transmission in downlink (DL) is a promising technique to significantly increase the system throughput and cell-edge user throughput. In this paper, we propose a scalable two-stage channel feedback mechanism not only to support downlink single-cell multi-user MIMO (MU-MIMO), but also to efficiently support multi-cell coordination. This scheme yields remarkable...
Cloud Storage is an important part of Cloud Computing, and it provides a way to achieve large scale storage architecture. And virtual storage is a strategy for Cloud Storage. A load balancing virtual storage strategy (LBVS) is proposed in this paper. The contribution of this strategy is that, it provides a large scale net data storage model and Storage as a Service model based on Cloud Storage. Three...
Music is ubiquitous in our daily life. People actively or passively listen to music at different locations and consciously or non-consciously experience it as a form of emotion expression. In this paper, we present a new location and emotion aware web-base interactive music system. It aims to provide the user preferred music with location and emotion awareness. The system starts recommendation with...
In this paper, we present a software architecture support for biofeedback in-flight music systems to promote stress free air travels. Once the passenger sits in a seat of a flight, his/her bio signals are acquired via non intrusive sensors embedded in the seat and then are modeled into stress states. If the passenger is in a stress state, the system recommends a personalized stress reduction music...
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