Yong-Luo Shen

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This paper presents a novel range-free single chord localization algorithm with low energy consumption and high accuracy for wireless sensor networks. A mobile anchor node and a mobile reference node are employed to periodically broadcast beacon messages and reference messages, respectively. Each sensor node is equipped with a received signal strength(More)
We propose a pipelined implementation of the eight-point Loeffler discrete cosine transform (DCT) for portable applications. The pipelined structure produces one DCT coefficient per clock cycle, which meets the limited memory bandwidth of many portable devices. Two-dimensional algebraic integer (AI) encoding and the shift-and-add approach were used to make(More)
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