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Energy-Efficient Uplink Resource Units Scheduling for Ultra-Reliable Communications in NB-IoT Networks
المؤلفون المشاركون
Chen, Jen-Jee
Liang, Jia-Ming
Wu, Kun-Ru
Liu, Pei-Yi
Tseng, Yu-Chee
المصدر
Wireless Communications and Mobile Computing
العدد
المجلد 2018، العدد 2018 (31 ديسمبر/كانون الأول 2018)، ص ص. 1-17، 17ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2018-07-02
دولة النشر
مصر
عدد الصفحات
17
التخصصات الرئيسية
تكنولوجيا المعلومات وعلم الحاسوب
الملخص EN
For 5G wireless communications, the 3GPP Narrowband Internet of Things (NB-IoT) is one of the most promising technologies, which provides multiple types of resource unit (RU) with a special repetition mechanism to improve the scheduling flexibility and enhance the coverage and transmission reliability.
Besides, NB-IoT supports different operation modes to reuse the spectrum of LTE and GSM, which can make use of bandwidth more efficiently.
The IoT application grows rapidly; however, those massive IoT devices need to operate for a very long time.
Thus, the energy consumption becomes a critical issue.
Therefore, NB-IoT provides discontinuous reception operation to save devices’ energy.
But, how to further reduce the transmission energy while ensuring the required ultra-reliability is still an open issue.
In this paper, we study how to guarantee the reliable communication and satisfy the quality of service (QoS) while minimizing the energy consumption for IoT devices.
We first model the problem as an optimization problem and prove it to be NP-complete.
Then, we propose an energy-efficient, ultra-reliable, and low-complexity scheme, which consists of two phases.
The first phase tries to optimize the default transmit configurations of devices which incur the lowest energy consumption and satisfy the QoS requirement.
The second phase leverages a weighting strategy to balance the emergency and inflexibility for determining the scheduling order to ensure the delay constraint while maintaining energy efficiency.
Extensive simulation results show that our scheme can serve more devices with guaranteed QoS while saving their energy effectively.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Liang, Jia-Ming& Wu, Kun-Ru& Chen, Jen-Jee& Liu, Pei-Yi& Tseng, Yu-Chee. 2018. Energy-Efficient Uplink Resource Units Scheduling for Ultra-Reliable Communications in NB-IoT Networks. Wireless Communications and Mobile Computing،Vol. 2018, no. 2018, pp.1-17.
https://search.emarefa.net/detail/BIM-1215999
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Liang, Jia-Ming…[et al.]. Energy-Efficient Uplink Resource Units Scheduling for Ultra-Reliable Communications in NB-IoT Networks. Wireless Communications and Mobile Computing No. 2018 (2018), pp.1-17.
https://search.emarefa.net/detail/BIM-1215999
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Liang, Jia-Ming& Wu, Kun-Ru& Chen, Jen-Jee& Liu, Pei-Yi& Tseng, Yu-Chee. Energy-Efficient Uplink Resource Units Scheduling for Ultra-Reliable Communications in NB-IoT Networks. Wireless Communications and Mobile Computing. 2018. Vol. 2018, no. 2018, pp.1-17.
https://search.emarefa.net/detail/BIM-1215999
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1215999
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