以視覺式狀態圖塑模蜂巢式結構換手機制之研究換手機制之研究以視覺式狀態圖塑模蜂巢式結構換手機制之研究以視覺式狀態圖塑模蜂巢式結構換手機制之研究

• Main Authors: Wen-Yi Zhuang, 莊文毅
• Other Authors: Yi-Sheng Huang
• Format: Others
• Language: zh-TW
• Published: 2009
• Online Access: http://ndltd.ncl.edu.tw/handle/57145014288101183145

碩士 === 國防大學理工學院 === 電子工程碩士班 === 97 === According to the statistic of the National Communication Dissemination Committee (NCC), the handset number of users has been increased 1,000,000 households since 1990 in Taiwan. Therefore, how to allocate channel resources becomes an extremely important issue. Due to the amount of mobiles increase rapidly, the problem of the communication blocking cannot be avoided under the conventional mechanism. This study proposes a new dynamic channel allocation mechanism to improve conventional one. This thesis uses Fuzzy theory and statecharts as the tools to design the switching frequency of the channel. Additional, a cellular network configuration is proposed. This configuration provides us the information of the neighbor base stations. Moreover, it is able to avoid the system unstable when the users are suddenly increasing. Experimental results indicate that this method is feasible developed.