Bluetooth Scatternet Using an Ad Hoc Bridge Node Routing Protocol for Outdoor Distance Education
Yao-Chung Chang (National Dong Hwa University, Taiwan, ROC), Han-Chieh Chao (National Dong Hwa University, Taiwan, ROC) and Jiann-Liang Chen (National Dong Hwa University, Taiwan, ROC)
Copyright: © 2008
In recent years, the prevalence of Internet and wireless technology has promoted mobile communications as a major research area. For future distance education purposes (Instructional Technology Council), to be able to access course materials anytime/anywhere will become a key issue, especially when students are not in the classroom, but are within a museum or a field investigation process; using an Ad hoc mechanism to access the real-time brief or introduction can definitely improve their learning interests greatly. One of the topics is IEEE802.11, which includes the Wireless LAN and Mobile Ad hoc Network (MANET) infrastructure (Perkins, 2000). MANET has no fixed infrastructure, but is capable of dynamic changing network architectures, such as PDAs, cellular phones, and mobile computers. Bluetooth (The Official Bluetooth SIG) possesses a smaller radio range, low power, and low costs. The Bluetooth Scatternet is a specific case of MANET (IETF MANET Working Group). In this paper we propose a Bridge Node Routing Protocol (BNRP) based on a revised Distributed Topology Construction Protocol (DTCP), into which a shortcut mechanism is added for better performance. The BNRP uses bridge nodes to preserve effective transmissions and achieve better Bluetooth Scatternet performance, and it can apply for outdoor distance education environment anytime and anywhere.