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Energy consumption is a major consideration in microprocessor optimization. This paper presents a tag-reduction based approach for energy saving in L1 i-cache (instruction cache) of chip multiprocessors (CMP). To our best knowledge, this is the first work that extends the tag reduction technique to the CMP. We formulate our approach to an equivalent problem which is to find an assignment of the whole...
We explore the multicast lifetime capacity of energy-limited wireless ad hoc networks using directional multibeam antennas by formulating and solving the corresponding optimization problem. In such networks, each node is equipped with a practical smart antenna array that can be configured to support multiple beams with adjustable orientation and beamwidth. The special case of this optimization problem...
We consider an optimization problem in wireless sensor networks (WSNs) that is to find a multicast tree with maximum lifetime. While a recently proposed distributed algorithm for this problem guarantees to obtain optimal solutions, its high message complexity may prevent such contribution from being practically used in resource-constrained WSNs. In this paper, we proposed a new distributed algorithm...
We consider an optimization problem in wireless sensor networks (WSNs) that is to find a multicast tree rooted at the source node and including all the destination nodes such that the lifetime of the tree is maximized. While a recently proposed distributed algorithm for this problem guarantees to obtain optimal solutions, we show that its high message complexity may prevent such contribution from...
Service retrieval is vital in pervasive computing environments, where a great number of devices and software components collaborate unobtrusively and provide numerous services. In this paper we propose develop matching techniques that operate on behavior model and allow delivery of partial match. An optimization approach using decision tree is shown to merge the context-aware message and the service...
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