Visual tracking using sensor networks
Proceedings of the 2nd International Conference on Simulation Tools and Techniques
Towards comparable simulations of cooperating objects and wireless sensor networks
Proceedings of the Fourth International ICST Conference on Performance Evaluation Methodologies and Tools
Simulating real-time aspects of wireless sensor networks
EURASIP Journal on Wireless Communications and Networking - Special issue on simulators and experimental testbeds design and development for wireless networks
A cross-layer solution for enabling real-time video transmission over IEEE 802.15.4 networks
Multimedia Tools and Applications
Joint duty cycle and link adaptation for IEEE 802.15.4 beacon-enabled networks
Proceedings of the 6th Workshop on Hot Topics in Embedded Networked Sensors
Analysis of buffer size dimensioning in GTS enabled IEEE 802.15.4 WSN for real-time applications
International Journal of Mobile Network Design and Innovation
Proceedings of the 14th ACM international conference on Modeling, analysis and simulation of wireless and mobile systems
A multiple access protocol for UWB wireless body area networks (WBANs) with narrowband feedback path
Proceedings of the 4th International Symposium on Applied Sciences in Biomedical and Communication Technologies
Performance evaluations of ZigBee in different smart grid environments
Computer Networks: The International Journal of Computer and Telecommunications Networking
A New QoS Resource Allocation Scheme Using GTS for WPANs
Wireless Personal Communications: An International Journal
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The IEEE 802.15.4 protocol has the ability to support time-sensitive Wireless Sensor Network (WSN) applications due to the Guaranteed Time Slot (GTS) Medium Access Control mechanism. Recently, several analytical and simulation models of the IEEE 802.15.4 protocol have been proposed. Nevertheless, currently available simulation models for this protocol are both inaccurate and incomplete, and in particular they do not support the GTS mechanism. In this paper, we propose an accurate OPNET simulation model, with focus on the implementation of the GTS mechanism. The motivation that has driven this work is the validation of the Network Calculus based analytical model of the GTS mechanism that has been previously proposed and to compare the performance evaluation of the protocol as given by the two alternative approaches. Therefore, in this paper we contribute an accurate OPNET model for the IEEE 802.15.4 protocol. Additionally, and probably more importantly, based on the simulation model we propose a novel methodology to tune the protocol parameters such that a better performance of the protocol can be guaranteed, both concerning maximizing the throughput of the allocated GTS as well as concerning minimizing frame delay. Keywords - IEEE 802.15.4; GTS; OPNET Modeler; simulation model; analytical model