Smart Antennas for Wireless Communications: IS-95 and Third Generation CDMA Applications
Smart Antennas for Wireless Communications: IS-95 and Third Generation CDMA Applications
Wireless sensor networks: a survey
Computer Networks: The International Journal of Computer and Telecommunications Networking
Phased Array and Adaptive Antenna Transceivers in Wireless Sensor Networks
DSD '04 Proceedings of the Digital System Design, EUROMICRO Systems
Wireless sensor network localization techniques
Computer Networks: The International Journal of Computer and Telecommunications Networking
An Energy-Efficient TDMA MAC for Wireless Sensor Networks
APSCC '07 Proceedings of the The 2nd IEEE Asia-Pacific Service Computing Conference
Wireless sensor network survey
Computer Networks: The International Journal of Computer and Telecommunications Networking
Power-Aware Node Deployment in Wireless Sensor Networks
International Journal of Distributed Sensor Networks - Sensor Networks, Ubiquitous and Trustworthy Computing
Localization of Wireless Sensor Networks Using a Moving Beacon with a Directional Antenna
HPCC '09 Proceedings of the 2009 11th IEEE International Conference on High Performance Computing and Communications
IEEE Transactions on Wireless Communications
Joint time synchronization and localization of an unknown node in wireless sensor networks
IEEE Transactions on Signal Processing
Computers and Electrical Engineering
Evaluation of Several Time Synchronization Protocols in WSN
ISME '10 Proceedings of the 2010 International Conference of Information Science and Management Engineering - Volume 01
Localization with Rotatable Directional Antennas for Wireless Sensor Networks
ICPPW '10 Proceedings of the 2010 39th International Conference on Parallel Processing Workshops
Scalable localization in wireless sensor networks
HiPC'06 Proceedings of the 13th international conference on High Performance Computing
Collaborative beamforming for distributed wireless ad hoc sensor networks
IEEE Transactions on Signal Processing
Routing techniques in wireless sensor networks: a survey
IEEE Wireless Communications
MAC protocols for wireless sensor networks: a survey
IEEE Communications Magazine
HiRLoc: high-resolution robust localization for wireless sensor networks
IEEE Journal on Selected Areas in Communications
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In wireless sensor networks, location awareness along with the sensed data is important for most of the applications. Although there are many localization techniques in the literature, some of these techniques involve tiny sensor nodes, which need to be computationally powerful and complex in hardware to estimate their locations. This paper proposes a modified sectoral sweeper-based localization estimation (M-SSLE) method, which is the improved version of our previously studied SSLE method, to achieve position information of sensor nodes. This technique requires only a central node having a smart antenna capability to estimate locations of sensor nodes and simplified message formats. Using the SSLE technique, the computational burden for location estimation is carried out by a central node and no hardware or software modification to tiny sensor devices is required. The M-SSLE is implemented using an OPNET modeler for realistic fading channel conditions. The detailed implementation methodology in OPNET is presented in terms of node and process models. The performance of the M-SSLE method is evaluated through different network scenarios and channel parameters in terms of localization error, average throughput, and node energy consumption. Furthermore, its localization performance is compared with the SSLE and Cramér Rao Bound methods in the two different scenarios for the deployment of the sensor nodes. The M-SSLE average localization errors of 4.3 and 8.9 m are demonstrated under the log-distance and the log-normal shadowing channel conditions in a area, respectively.