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Traditional network processors (NPs) adopt pull model, where NP cores pull packet data from external memory to local memory, triggered by cache miss or fetch instructions. Due to the long latency of data fetching, hardware multithreading is typically used to reduce the waiting time. Multithreading incurs context switch overhead, leading to inefficiency in payload processing applications. We propose...
The electronics software and hardware design based on CCD47-10 is introduced in this article, including CCD output signal analog amplification, sequential driver, image data acquisition, SDRAM board data buffer and USB bus data transfer. The clear image exposed by LED is taken by the DAQ system in test.
More complicated computational tasks are posed to the network equipments, such as Deep packet inspection (DPI) for network security check and network coding to achieve efficient multicast, etc. These complicated applications need processors to process the whole packet payload, potentially causing low throughput and long latency due to the large access delay to external memories. The behind hint lies...
Conventional partial transmit sequence (PTS) orthogonal frequency division multiplexing (OFDM) system requires high hardware or high algorithm computational complexity to reduce peak to average power ratio (PAPR) so that signal distortion and power can be reduced during transmission. The Lim's PTS OFDM system is applied to this paper in the beginning with the aim at reducing hardware complexity. Since...
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