التفاصيل البيبلوغرافية
| العنوان: |
An energy efficient medium access control protocol for target tracking based on dynamic convey tree collaboration in wireless sensor networks. |
| المؤلفون: |
Wang, Yun1 (AUTHOR), Shi, Peizhong1 (AUTHOR), Li, Kai1 (AUTHOR), Chen, Zhikui2 (AUTHOR) |
| المصدر: |
International Journal of Communication Systems. Sep2012, Vol. 25 Issue 9, p1139-1159. 21p. 8 Diagrams, 2 Charts, 4 Graphs. |
| مصطلحات موضوعية: |
*ACCESS control, *ENERGY consumption, *INTERNET protocols, *TREE graphs, *ELECTRIC interference, *WIRELESS sensor networks, *TIME division multiple access, *COMPUTER simulation |
| مستخلص: |
SUMMARY Collisions and interferences among nodes pose a challenge for data aggregation in many applications, such as target tracking by adopting dynamic convey tree-based collaboration (DCTC). Because coordination with a time division multiple access (TDMA) medium access control (MAC) might provide an opportunity for better interference control, in this paper, we refine slot allocation to nodes in a dynamic convey tree and design an energy efficient MAC protocol called dynamic-time division multiple access (D-TDMA). The D-TDMA protocol avoids collisions and interferences and allocates contiguous active slots to nodes as far as possible during data aggregation from leaf nodes to a root node. As a result, energy consumption in switching from sleep to active state is saved. In comparison with Always-On scheme, theoretical analysis results show that the proposed protocol D-TDMA improves energy efficiency by up to 28.3% during one data aggregation. Furthermore, simulation results show that D-TDMA does not suffer from collisions and interferences among nodes in a dynamic convey tree and performs similar throughput to that of Always-On scheme. Because of its advantage of parallel and continuous scheduling among node pairs in the convey tree, D-TDMA outperforms efficient slot reservation in both energy efficiency and low delay because of to slot saving. Copyright © 2012 John Wiley & Sons, Ltd. [ABSTRACT FROM AUTHOR] |
| قاعدة البيانات: |
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