Adaptive Modulation Scaling Scheme for Wireless Sensor Networks(Software Platform Technologies, <Special Section>Ubiquitous Networks)
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概要
- 論文の詳細を見る
Limited energy is a big challenge for large scale wireless sensor networks (WSN). Previous research works show that modulation scaling is an efficient technique to reduce energy consumption. However, the impacts of using modulation scaling on packet delivery latency and loss are not considered, which may have adverse effects on the application qualities. In this paper, we study this problem and propose control schemes to minimize energy consumption while ensuring application qualities. We first analyze the relationships of modulation scaling and energy consumption, end-to-end delivery latency and packet loss ratio. With the analytical model, we develop a centralized control scheme to adaptively adjust the modulation levels, in order to minimize energy consumption and ensure the application qualities. To improve the scalability of the centralized control scheme, we also propose a distributed control scheme. In this scheme, the sink will send the differences between the required and measured application qualities to the sensors. The sensors will update their modulation levels with the local information and feedback from the sink. Experimental results show the effectiveness of energy saving and QoS guarantee of the control schemes. The control schemes can adapt efficiently to the time-varying requirements on application qualities.
- 社団法人電子情報通信学会の論文
- 2005-03-01
著者
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HE Jianhua
Department of Electrical & Electronic Engineering, University of Bristol
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He Jianhua
Department Of Electrical And Electronic Engineering University Of Bristol
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YANG Zongkai
Department of Electronics and Information, Huazhong University of Science and Technology
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YUAN Yong
Department of Electronics and Information, Huazhong University of Science and Technology
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CHEN Wenqing
Department of Electronics and Information, Huazhong University of Science and Technology
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Yang Zongkai
Department Of Electronics And Information Huazhong University Of Science And Technology
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Chen Wenqing
Department Of Electronics And Information Huazhong University Of Science And Technology
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Yuan Yong
Department Of Electronics And Information Huazhong University Of Science And Technology
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YANG Zongkai
Department of Electronics and Information Engineering, Huazhong University of Science and Technology
関連論文
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- Non-saturated Throughput Analysis of IEEE802.11 Ad Hoc Networks(Challenges in Ad-hoc and Multi-hop Wireless Communications)
- An Enhanced Scalable Probe-Based Multicast Admission Control Scheme(Internet)