Joint User Association and Energy Offloading in Downlink Heterogeneous Cellular Networks

Joint Authors

Chen, Yunfei
Hu, Yifan
Li, Rui
Mao, Minghe
Cao, Ning

Source

Mobile Information Systems

Issue

Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-9, 9 p.

Publisher

Hindawi Publishing Corporation

Publication Date

2018-08-19

Country of Publication

Egypt

No. of Pages

9

Main Subjects

Telecommunications Engineering

Abstract EN

As a key technology in Long-Term Evolution-Advanced (LTE-A) mobile communication systems, heterogeneous cellular networks (HCNs) add low-power nodes to offload the traffic from macro cell and therefore improve system throughput performance.

In this paper, we investigate a joint user association and resource allocation scheme for orthogonal frequency division multiple access- (OFDMA-) based downlink HCNs for maximizing the energy efficiency and optimizing the system resource.

The algorithm is formulated as a nonconvex optimization, with dynamic circuit consumption, limited transmit power, and quality-of-service (QoS) constraints.

As a nonlinear fractional problem, an iteration-based algorithm is proposed to decompose the problem into two subproblems, that is, user association and power allocation.

For each iteration, we alternatively solve the two subproblems and obtain the optimal user association and power allocation strategies.

Numerical results illustrate that the proposed iteration-based algorithm outperforms existing algorithms.

American Psychological Association (APA)

Li, Rui& Cao, Ning& Mao, Minghe& Chen, Yunfei& Hu, Yifan. 2018. Joint User Association and Energy Offloading in Downlink Heterogeneous Cellular Networks. Mobile Information Systems،Vol. 2018, no. 2018, pp.1-9.
https://search.emarefa.net/detail/BIM-1204932

Modern Language Association (MLA)

Li, Rui…[et al.]. Joint User Association and Energy Offloading in Downlink Heterogeneous Cellular Networks. Mobile Information Systems No. 2018 (2018), pp.1-9.
https://search.emarefa.net/detail/BIM-1204932

American Medical Association (AMA)

Li, Rui& Cao, Ning& Mao, Minghe& Chen, Yunfei& Hu, Yifan. Joint User Association and Energy Offloading in Downlink Heterogeneous Cellular Networks. Mobile Information Systems. 2018. Vol. 2018, no. 2018, pp.1-9.
https://search.emarefa.net/detail/BIM-1204932

Data Type

Journal Articles

Language

English

Notes

Includes bibliographical references

Record ID

BIM-1204932