Homework 9/22/2007

繳交作業方式
Sep-29-2007 11:59 a.m. Due

1. Read and then comment on the following papers.

• Yao-Jen Chang, Shih-Kai Tsai, Tsen-Yung Wang Wayfinding Systems Based on Passive RFID for Individuals with Cognitive Impairments
  
• Yao-Jen Chang, Tseng-Yun Wang, Yu-Chia Chuang, Shih-Kai Tsai, “Ontology-based Personalized Wayfinding System Using Deviation Detecting for Individuals with Cognitive Impairments” to be presented in International Conference on Convergence Information Technology 2007, Gyeongju, Korea. November 21~23, 2007. (EI)

(以上論文都收錄在講義裡)

2. Read Sec. 1-3-6 of Textbook.
What is the disadvantage of Mobile IP and what's the solution?

3. According to lecture notes on Page 2, what is social network? Why is the positioning a major factor in mobile social network service?