Title	Lifetime Maximization by Cross-Layer Design considering Power Control, MAC, Routing in Sensor Networks
Author	In-Yeup Kong, JongGyu Kim, Won-Joo Hwang
Citation	Vol. 6  No. 9  pp. 144-150
Keywords	Cross-layer, Lifetime maximization, Multi-hop communication, Energy-efficiency, Sensor networks.

Title	New Authentication Mechanism for Vertical Handovers between IEEE 802.16e and 3G Wireless Networks
Author	Pyung-Soo Kim, Yong-Jin Kim
Citation	Vol. 6  No. 9  pp. 138-143
Keywords	Authentication, Vertical handover, IEEE 802.16e, 3G.

Title	Parking management system using ZigBee
Author	Sangmi Shim, Seungwoo Park, Seunghong Hong
Citation	Vol. 6  No. 9  pp. 131-137
Keywords	RFID, ZigBee, Sensor network, 802.15.4 LR-WPAN

Title	A Design and Implementation of Forest-Fires Surveillance System based on Wireless Sensor Networks for South Korea Mountains
Author	Byungrak Son, Yong-sork Her, Jung-Gyu Kim
Citation	Vol. 6  No. 9  pp. 124-130
Keywords	Wireless Sensor Networks, Surveillance System, Middleware, Minimum Cost path Forwarding