The following information was submitted:
Transactions: WSEAS TRANSACTIONS ON COMMUNICATIONS
Transactions ID Number: 52-292
Full Name: I-Hui Li
Position: Student
Age: ON
Sex: Female
Address: 1, Ling tung Rd., Taichung, Taiwan, R.O.C.
Country: TAIWAN
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E-mail address: phd9301@cs.nchu.edu.tw
Other E-mails: sanity@mail.ltu.edu.tw
Title of the Paper: An Uncapacitated Facility Location Based Cluster Hierarchy Scheme
Authors as they appear in the Paper: I-Hui Li1, I-En Liao, Feng-Nien Wu
Email addresses of all the authors: phd9301@cs.nchu.edu.tw, ieliao@nchu.edu.tw, fengnien@gmail.com
Number of paper pages: 17
Abstract: Cluster-Head (CH) nodes function as gateways between the sensors and the Base Station (BS), in Wireless Sensor Networks with a cluster hierarchy. The total energy dissipation of the sensors can be reduced by optimizing the load balance within the cluster hierarchy. This paper proposes an uncapacitated facility location based cluster scheme in which the system lifetime is extended by adding an additional layer of Super- Cluster-Head (SCH) nodes, in order to ease the transmission load of the CHs and to balance the load distribution within the network. The SCH layer is configured using an uncapacitated facility location algorithm in which the facility cost and service cost functions are defined in terms of both the energy and the transmission distance. The simulation results confirm that the uncapacitated facility location algorithm yields a better load balance in the SCH layer than that obtained using either a random configuration scheme or a round-robin scheme. Fina!
lly, it is shown that irrespective of the size of the sensor field, the proposed cluster hierarchy scheme outperforms the conventional LEACH-C two-layer scheme in terms of the average energy dissipation of the nodes, the average survival times of the nodes, and the overall system lifetime.
Keywords: Wireless Sensor Network, Gateway Node, Cluster hierarchy, Uncapacitated Facility Location
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