Robust Power Allocation for Cognitive Radio System in Underlay Mode

Rongfei Fan; Qi Gu; Xuming An; Yu Zhang

IoT as a Service. 4th EAI International Conference, IoTaaS 2018, Xi’an, China, November 17–18, 2018, Proceedings

Research Article

Robust Power Allocation for Cognitive Radio System in Underlay Mode

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@INPROCEEDINGS{10.1007/978-3-030-14657-3_44,
    author={Rongfei Fan and Qi Gu and Xuming An and Yu Zhang},
    title={Robust Power Allocation for Cognitive Radio System in Underlay Mode},
    proceedings={IoT as a Service. 4th EAI International Conference, IoTaaS 2018, Xi’an, China, November 17--18, 2018, Proceedings},
    proceedings_a={IOTAAS},
    year={2019},
    month={3},
    keywords={Cognitive radio Underlay Robust power allocation},
    doi={10.1007/978-3-030-14657-3_44}
}

Rongfei Fan
Qi Gu
Xuming An
Yu Zhang
Year: 2019
Robust Power Allocation for Cognitive Radio System in Underlay Mode
IOTAAS
Springer
DOI: 10.1007/978-3-030-14657-3_44

Rongfei Fan¹^,*, Qi Gu²^,*, Xuming An¹^,*, Yu Zhang¹^,*

1: Beijing Institute of Technology
2: Beijing Jiaotong University

*Contact email: fanrongfei@bit.edu.cn, 15112094@bjtu.edu.cn, 1952590139@qq.com, yuzhang@bit.edu.cn

Abstract

In this paper, the power allocation problem in cognitive underlay system is studied given a number of samples of interference channel’s gain. System throughput of secondary users is aimed to be maximized while limiting the worst-case interference outage probability. With only a number of samples of interference channel’s gain, we define an uncertain region of possible probability density function (PDF) of interference channel’s gain and further derive the closed-form expression for the interference outage probability constraint. By replacing the formulated constraint on interference outage probability with closed-form one, we show the originally formulated problem is a convex optimization problem.

Keywords: Cognitive radio Underlay Robust power allocation

Published: 2019-03-07
Appears in: SpringerLink

: http://dx.doi.org/10.1007/978-3-030-14657-3_44