Yukari Iwanami

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Wireless transmissions with high data rate and high reliability are very demanding. We have focused on an Unequal Error Protection (UEP) using different modulation schemes. The UEP in our study means the multiplexed transmission where multiple modulations are transmitted simultaneously. The receive data bits with guaranteed reliability at each E<sub>b</sub>(More)
  • Curtis S. Signorino, David Carter, +6 authors Arthur Spirling
  • 2007
existing game theory practice and to existing statistical techniques. It contributes to this literature by reminding us that comparative statics analysis can be applied to the equilibria of these models. There are a number of claims in CYZ, however, that require clarification. In particular, the article's primary claim is that comparative statics analysis,(More)
In recent years, high-speed and high-quality mobile communications have been demanded. Wavelet packet modulation (WPM) has been proposed as one of the multicarrier transmission methods and applied to the mobile communications. The WPM has an advantage of equalizing performance compared with OFDM (orthogonal frequency division multiplexing) when a frequency(More)
We propose a performance improvement scheme of location estimation using received signal strength (RSS) method in wireless sensor networks. Reference nodes in sensor networks receive RSS from a target node whose location is unknown, calculate the RSS deviation score, and eliminate the scattered RSS of edge-score. This improves the estimation accuracy which(More)
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