Federating Wireless Sensor Networks (WSNs) in Outdoor Environment Monitoring (OEM) becomes a necessity as advances in sensing technologies are achieved. Where several …
S Lee, M Younis - IEEE Transactions on Computers, 2011 - ieeexplore.ieee.org
In some applications of wireless sensor networks (WSNs), it may be necessary to link a number of disjoint segments in order to form a federated system. The segments can be …
Advances in sensing and wireless communication technologies have enabled a wide spectrum of Outdoor Environment Monitoring applications. In such applications, several …
S Lee, M Younis - Computer Networks, 2012 - Elsevier
Wireless sensor networks (WSNs) often operate in a harsh environment such as battlefield and may suffer simultaneous failure of multiple sensors that cause the network to become …
We consider in this letter the problem of constrained relay node (RN) placement where sensor nodes must be connected to base stations by using a minimum number of RNs. The …
JS Li, HC Kao, JD Ke - IET communications, 2009 - IET
Energy consumption is a crucially important issue in battery-driven wireless sensor networks (WSNs). In most sensor networks, the sensors near the data collector (ie the sink) become …
S Lee, M Younis - 2010 6th IEEE International Conference on …, 2010 - ieeexplore.ieee.org
Wireless sensor networks (WSNs) often operate in severe surroundings and may suffer simultaneous failure of multiple nodes which gets the network partitioned into distinct …
Wireless sensor networks are formed with very small sensor devices with limited energy and short transmission range. Sensors are randomly deployed in remote areas with harsh …
C Ma, W Liang, M Zheng, H Sharif - IEEE Sensors Journal, 2015 - ieeexplore.ieee.org
In two-tiered wireless sensor networks (WSNs), relay node placement is one of the key factors impacting the network energy consumption and the system overhead. In this paper, a …