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In this paper, we investigate the state of the art for the deployment of ECN (Explicit Congestion Notification) on the Internet from a different viewpoint. We carefully choose four data sets as the hosts to be tested. We negotiate an ECN-Capable and a Not-ECN-Capable connections with each host and collect all packets belonging to the connections. By analyzing the TCP/IP header fields of packets belong...
While many companies have launched various wireless chargers in mobile industries, conventional wireless power transfer (WPT) technologies are available only for a very short distance due to large attenuation of the magnetic fields. A magnetic beamforming WPT system achieves an enhanced power transfer efficiency (PTE) with a longer wireless charging distance than conventional WPT technologies by adjusting...
With the increase in population and automobiles, the traffic jam in urban areas is becoming a critical issue. These traffic jams especially at the intersections not only increase the delay for drivers, but also increase fuel consumption and the air pollution. The fixed-time traffic light controller is one of critical factors that affect the traffic flow at intersections. This paper proposes a new...
In this paper, we study channel-aware (CA) randomization for secure transmissions in a multicarrier system based on partial channel state information (CSI). In order to see the performance gain by CA randomization, we consider the secrecy rate and show that i) a positive secrecy rate can be obtained even if the channel to an adversary is stochastically more capable than the channel to a legitimate...
In this paper, we propose a bandwidth scalability for digital terrestrial broadcasting, which uses a wide bandwidth of multiples of the conventional bandwidth 6/7/8 MHz. Wide bandwidth broadcasting uses wider bandwidth than the legacy 6/7/8 MHz and may have advantages in reducing network installation cost and operation cost. By allocating bandwidths not to interfere with neighboring coverage, it does...
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