A GPRS/UMTS/WLAN MMS System for Supporting Mobile E-learning

• Main Authors: Shu-Ching Chen, 陳淑菁
• Other Authors: 黃毅然
• Format: Others
• Language: zh-TW
• Published: 2006
• Online Access: http://ndltd.ncl.edu.tw/handle/02297552405848650524

碩士 === 元智大學 === 資訊工程學系 === 94 === Technological trends strongly favor the spread of mobile e-learning (M-learning). However, the existing full-coverage mobile networks, such as General Packet Radio Service (GPRS) and Universal Mobile Telecommunication System (UMTS), are not able to effectively support content-rich multimedia transmission since the practical data rates offered are limited to 50/300 kbps. In parallel with the full-coverage GPRS/UMTS networks, Wireless Local Area Network (WLAN) provides high-speed transmission services with actual data rates around 30 Mbps in a short-range local mobility environment. By integrating the sophisticated mobility management mechanism provided by GPRS/UMTS and the broadband transmission service provided by WLAN, we design and develop a GPRS/UMTS/WLAN multimedia messaging service (MMS) system, called GWMMS system. The GWMMS system provides instant messaging notification, content-rich messaging access, convergent, and especially, cheap messaging service. On the basis of the GWMMS system, we propose a GWMMS M-learning prototype. With the GWMMS M-learning prototype, we demonstrate a field-based learning system.