In data acquisition (DAQ)-based services of Internet of things (IoT), IoT devices sense data and transmit data to the application server through IoT gateway (GW). Due to the energy limitation of IoT devices, it is an important issue to increase energy efficiency of IoT devices. Meanwhile, when data from a huge number of IoT devices are individually transmitted, the data traffic volume can be significant. To resolve these issues, IoT devices and IoT GW can use sleep mode and data aggregation, respectively. However, when the IoT devices are in sleep mode for long time and/or data are aggregated in IoT GW for long time without any transmissions, the data can be inconsistent. In this paper, we propose a consistency-guaranteed and energy efficient sleep scheduling algorithm (CG-E2S2) with data aggregation. In CG-E2S2, the optimal sleep duration and the number of aggregated data are jointly determined by means of Markov decision process (MDP) with the consideration of energy efficiency of IoT devices, data traffic in networks, and data consistency. Evaluation results demonstrate that CG-E2S2 with the optimal policy outperforms the comparison schemes in terms of energy efficiency, data traffic volume, and data consistency.
|Title of host publication||European Wireless 2017 - 23rd European Wireless Conference|
|Publisher||Institute of Electrical and Electronics Engineers Inc.|
|Publication status||Published - 2017|
|Event||23rd European Wireless Conference, EW 2017 - Dresden, Germany|
Duration: 2017 May 17 → 2017 May 19
|Name||European Wireless 2017 - 23rd European Wireless Conference|
|Other||23rd European Wireless Conference, EW 2017|
|Period||17/5/17 → 17/5/19|
Bibliographical noteFunding Information:
ACKNOWLEDGEMENT This work was supported by National Research Foundation (NRF) of Korea Grant funded by the Korean Government (MSIP) (No. NRF-2014R1A2A1A12066986) and the R&D program of MOTIE/KEIT [10051306, Development of Vehicular Cloud-based Dynamic Security Framework for Internet of Vehicles (IoV) Services].
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- Data aggregation
- Data consistency
- Internet of things (IoT2D07122
- Markov decision process (MDP)
ASJC Scopus subject areas
- Computer Networks and Communications
- Hardware and Architecture