An Advanced Group Number Resetting and Refreshing Scheme for 3-D GM-MAC Protocol

In recent years, all devices are used throught the Internet. Even in areas where it is difficult for people to handle the devices directly, various devices are installed. The devices gather data. Since these devices have limited energy, a suitable MAC protocol is necessary to operate them efficiently. In addition many mobility sensors are developed. So, it is essential to design suitable MAC protocol to the actual 3-D environment. The proposed 3-D GM-MAC is suitable for the real world but it has errors when it resets group number. In this paper, the new method that redesigning the group number is suggested. Also, it is implemented and compared with the proposed 3-D GM-MAC.