Te-Kai Liu, Robert Dimpsey, et al.
International Journal of Business Process Integration and Management
Wireless coverage is often problematic. This is especially true for mobile radio networks, e.g., cellular networks. It is a very frustrating experience for a mobile user finding out that he is out of the coverage of his wireless service provider when he needs to send an emergency message. This paper proposes a method and system for delivering electronic messages over a wireless cellular communications network when the sender of a message is out of the coverage area. With this method the message is broadcasted repeatedly until a mobile wireless courier receives the message and stores the message. When the courier is within range of a base station of the cellular communication network, it then transmits the stored message to the base station for delivery.
Te-Kai Liu, Robert Dimpsey, et al.
International Journal of Business Process Integration and Management
Te-Kai Liu, John A. Silvester
IEEE Journal on Selected Areas in Communications
Te-Kai Liu, Santhosh Kumaran
CMG 2001
Te-Kai Liu, Yun-Wu Huang, et al.
ICNSC 2004