The conjugacy search problem in a group G is the problem of recovering an x G from given g G and h = x-1 gx. The alleged computational hardness of this problem in some groups was...
Sensor networks have been used in many applications such as health monitoring, structural monitoring, transportation networks, weather prediction, and border security. In most of ...
In Ubiquitous Computing Environment (UCE), service provider wants to provide its service to only legitimate users. Some users who belong to same service provider do not want to rev...
IMT-2000 has been developing in both cdma2000 and W-CDMA, and their convergence or harmonization has also been discussed in several standard organizations. Besides the most expert...
As a number of networked digital devices are ubiquitously used, control of inter-device communications becomes a complicated task. People can no longer keep track of all the device...
Jun Rekimoto, Yuji Ayatsuka, Michimune Kohno, Haru...