Ryutaro Suzuki

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BACKGROUND Plant mitochondria contain a relatively large amount of genetic information, suggesting that their functional regulation may not be as straightforward as that of metazoans. We used a genomic tiling array to draw a transcriptomic atlas of Oryza sativa japonica (rice) mitochondria, which was predicted to be approximately 490-kb long. RESULTS(More)
Channel detection is necessary for control of channel usage in multi-user and multi-channel wireless networks. In this paper, we propose a real time wireless channel detection method based on measuring fluctuations of packet arrival intervals in networks using IEEE802.11 media access protocol. We have used simulations to show the relationship between the(More)
—A turbo network coding based relay model and its decoding method are proposed for the quasi-static fading multi-access up-link channel. In the model a relay assists two mobile nodes simultaneously by forwarding a network coded version of the two interleaved messages. Access Point (AP) performs joint channel and network decoding with signals received from(More)
In inter-vehicle networks, it is required that collision warning messages be forwarded over multiple hops with significantly short delay. Cut-through packet forwarding is known to effectively reduce forwarding latency. However, it suffers from reliability issue, which can be severe in wireless networks, due to fading, users' mobility, and so on. This paper(More)
SUMMARY Current trend in telecommunications is " broadband " and " ubiquitous. " To achieve this goal, satellite communications systems are expected to play an important role in cooperation with terrestrial communications systems. Along with the advancement of optical fiber transmission systems, the role of satellite communications was dramatically changed(More)
—Although the near-far effect has been considered to be the major issue preventing CDMA from being used in ad-hoc networks, in this paper, we show that the near-far effect is not a severe issue in inter-vehicle networks for safety driving support, where packet transmissions are performed in the broadcast manner. Indeed, the near-far effect provides(More)
— In this paper we study the channel efficiency of Mobile Ad hoc Networks (MANET) and try to trade off between the progress and the instantaneous rate when forwarding packets in the fading environment. We define a new metric—bit transfer speed (BTS)—as the ratio of the progress made towards the destination to the equivalent time taken to transfer a payload(More)