| IEEE802.15.4多时隙下GTS性能分析及配置优化 |
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| 引用本文： | 蔡惠娟,蒋文贤.IEEE802.15.4多时隙下GTS性能分析及配置优化[J].计算机应用,2012,32(12):3499-3504. |
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| 作者姓名： | 蔡惠娟 蒋文贤 |
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| 作者单位： | 华侨大学 计算机科学与技术学院, 福建 厦门 361021 |
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| 基金项目： | 中央高校基本科研业务费专项资金资助项目(10QZR05);福建省泉州市科技计划重点项目(2011Z6) |
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| 摘 要： | IEEE802.15.4标准的保障时隙(GTS)机制可分配多个时隙，用于保障实时性数据的传输。针对非竞争接入期多时隙下GTS性能分析的不足，利用网络微积分法分析时延和吞吐量服务曲线及其与能耗的关系，改进IEEE802.15.4传感器节点模型，建模仿真研究GTS参数对网络性能(时延、吞吐量及能耗)的影响。仿真结果表明：根据高低突发性数据率的情况，最优化配置下的GTS可以满足实时性数据的传输。
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| 关 键 词： | 无线传感器网络 IEEE802.15.4 实时 保障时隙 网络微积分 |
| 收稿时间： | 2012-06-14 |
| 修稿时间： | 2012-07-22 |
IEEE802.15.4 guaranteed time slot performance analysis and allocation optimization under multi-slot |
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| CAI Hui-juan,JIANG Wen-xian.IEEE802.15.4 guaranteed time slot performance analysis and allocation optimization under multi-slot[J].journal of Computer Applications,2012,32(12):3499-3504. |
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| Authors: | CAI Hui-juan JIANG Wen-xian |
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| Affiliation: | College of Computer Science and Technology, Huaqiao University, Xiamen Fujian 361021, China |
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| Abstract: | Every Guaranteed Time Slot (GTS) mechanism in IEEE 802.15.4 standard can be allocated multiple slots to guarantee the real-time data transmission. For the lack of analyzing multi-slot GTS performances under contention free period, the network calculus, was used to analyze the service curves of delay bound and throughput, and the connection with energy consumption.The IEEE802.15.4 sensor node model which has proposed by Jurcik and Koubaa has been improved, and modeling and simulation were done to study how GTS parameters influenced the network performances (delay, throughput and energy consumption). The simulation results indicate that according to high or low burst data rate, there is an optimized allocation of GTS parameters to meet the real-time data transmission. |
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| Keywords: | Wireless Sensor Network (WSN) IEEE802 15 4 real time Guaranteed Time Slot (GTS) network calculus |
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