Accurate Energy-Efficient Power Control for Uplink NOMA Systems under Delay Constraint

被引：0

作者：

Cai, Bowen ^{[1
]}

Chen, Yu ^{[1
]}

Cui, Qimei ^{[1
]}

Zhu, Xiaoxuan ^{[2
]}

Yang, Yang ^{[3
]}

机构：

[1] Beijing Univ Posts & Telecommun, Natl Engn Lab Mobile Network Technol, Beijing, Peoples R China

[2] China Sci & Technol Exchange Ctr, Beijing, Peoples R China

[3] Shanghai Res Ctr Wireless Commun, Shanghai, Peoples R China

来源：

2018 IEEE/CIC INTERNATIONAL CONFERENCE ON COMMUNICATIONS IN CHINA (ICCC) | 2018年

关键词：

MTC; NOMA; power control; delay constraint; QoS requirements; MODEL;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Machine-type communications (MTC) devices in 5G will use the Non-orthogonal multiple access (NOMA) technology for massive connections. These devices switch between the transmission mode and the sleep mode for battery saving; and their applications may have diverse quality of service (QoS) requirements. In this paper, we develop a new uplink energy-efficient power control scheme for multiple MTC devices with the above mode transition capability and different QoS requirements. By using the effective bandwidth and the effective capacity models, the system's energy efficiency can be formulated as the ratio of the sum effective capacity to the sum energy consumption. Two new analytical models are used in system's energy efficiency maximization problem: 1) two-mode circuitry model and 2) accurate delay-outage approximation model. Simulation shows our proposed scheme is capable of providing exact delay QoS guarantees for NOMA systems.

引用

页码：682 / 687

页数：6

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