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Navigating in a three dimensional (3D) virtual environment is difficult mainly because of limited navigational information that can only offer a screen-size visualization and low level imitation of other human senses. To address this problem, studies on various methods of navigation aid have been carried out. The navigation aid described in this paper was(More)
— — SMARTPHONE has become a big issue in South Korea and worldwide. In this work we will propose techniques that display web contents according to user preference and service provider's interest for small screen devices such as smartphones. A number of works and research have been conducted to generate suitable web contents for small screen devices. But(More)
In the Internet of Things (IoT) environment, a sensor network protocol must satisfy various application-specific requirements such as synchronous, asynchronous, symmetric, and asymmetric operations. Most block design-based neighbor discovery protocols can not support asymmetric operations. In this paper, we propose a new block cycle length-based asymmetric(More)