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In this paper, we explore 6 SPM allocation algorithms to improve performance or energy efficiency for Hybrid SPM-Cache (HSC) architectures, including 4 heuristic-based algorithms and 2 optimal algorithms based on model checking. Our experimental results show that the Greedy Stack Distance based Allocation for Energy (GSDA-E) algorithm can efficiently minimize the energy consumption and achieve near...
Scratch-Pad Memories (SPMs) have been increasingly used in embedded systems, for which it is important to reduce the leakage energy consumption. While there are several techniques to reduce the leakage energy for cache memories, those techniques may result in significant performance overheads for instruction SPMs. In this paper, we study a compiler-based approach to reducing the instruction SPM leakage...
Wireless sensor networks (WSNs) are increasingly used in our daily life. However, since the battery lifetime of a WSN node is restricted, the lifetime of a WSN is also limited. Thus, it is crucial to determine this limited lifetime in advance for preventing service interruptions. This paper proposes a feasible static analysis approach to estimate the worst-case lifetime of WSNs, with specific focus...
This paper considers a circular high-density WSNs, which is divided into several homogeneous sectors. For a sector, the route nodes transmit data to base station (BS) along the sides of the sector and the radio of nodes can cover all areas of target area. The paper presents an energy-balance solution to balance the energy consumption, by adjusting transmission range with quality coverage under a FSCTA...
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