@article{oai:ipsj.ixsq.nii.ac.jp:00079574,
 author = {田中, 信吾 and 山浦, 隆博 and 山口, 健作 and 菅沢, 延彦 and 谷澤, 佳道 and 渋谷, 尚久 and Shingo, Tanaka and Takahiro, Yamaura and Kensaku, Yamaguchi and Nobuhiko, Sugasawa and Yoshimichi, Tanizawa and Naohisa, Shibuya},
 issue = {12},
 journal = {情報処理学会論文誌},
 month = {Dec},
 note = {ネットワークを流れる映像トラフィックの増加により，特に高速大容量な通信を指向した組み込みの分野ではTCP/IP処理を行うCPUの動作周波数や消費電力の増大が問題となってきた．そこで我々は，専用ハードウェアを用いたTCP/IPオフロードエンジンNPEngineTMを開発し，Gigabit Ethernet向け実装で従来の組み込みCPUに比べて動作周波数あたりで80倍，消費電力あたりで22～29倍の伝送レートを実現した．また，10Gigabit Ethernet向け実装では90MHzで双方向同時9Gbps以上の伝送レートを実現し，省電力FPGAを用いた際の装置全体の消費電力の予測値は約2Wと従来のPCによる実現と比べて大幅に低い消費電力となった．, The increase of video streaming traffic over networks has created several problems for host processors that process the TCP/IP protocol. The problems, such as higher required operating frequency and/or increased power consumption, are especially important when the processors are used in embedded systems. In order to solve these problems, we have designed and implemented a hardware-based TCP/IP offload engine, called NPEngineTM. Compared to a conventional embedded CPU, NPEngineTM configured for Gigabit Ethernet can achieve about 80 times higher throughput at the same operating frequency, or 22 to 29 times higher throughput for the same power consumption. NPEngineTM configured for 10Gigabit Ethernet achieves a bidirectional throughput of over 9Gbps at 90MHz operating frequency. The total power consumption of the system using a low power FPGA is estimated to be about 2W, which is much lower than that of a conventional PC-based system.},
 pages = {3715--3728},
 title = {Gigabit/10Gigabit Ethernetに対応した高効率TCP/IPオフロードエンジン},
 volume = {52},
 year = {2011}
}