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Abstract
In this paper, subcarrier pairing and power allocation are jointly investigated to maximize the energy efficiency (EE) of a dual-hop multicarrier decode-and-forward (DF) relay network. The optimization problem is formulated as a ratio of the spectrum efficiency (SE) over the entire power consumption of the network subject to total power and subcarrier pairing constraints. A near-optimal iterative scheme is proposed to perform the subcarrier pairing and power allocation for achieving the maximum EE of the network. A two-step suboptimal resource allocation scheme is further proposed to reduce the complexity, in which the subcarrier pairing is first performed by considering the channel quality of the source-to-relay (SR) and relay-to-destination (RD) links, followed by an energy-efficient power allocation scheme to maximize the EE. Numerical results are presented to confirm the effectiveness of the proposed schemes and to demonstrate the tradeoff between EE and SE performances.
Original language | English |
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Title of host publication | 2019 IEEE 89th Vehicular Technology Conference, VTC Spring 2019 - Proceedings |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
ISBN (Electronic) | 9781728112176 |
DOIs | |
State | Published - Apr 2019 |
Event | 89th IEEE Vehicular Technology Conference, VTC Spring 2019 - Kuala Lumpur, Malaysia Duration: 28 Apr 2019 → 1 May 2019 |
Publication series
Name | IEEE Vehicular Technology Conference |
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Volume | 2019-April |
ISSN (Print) | 1550-2252 |
Conference
Conference | 89th IEEE Vehicular Technology Conference, VTC Spring 2019 |
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Country/Territory | Malaysia |
City | Kuala Lumpur |
Period | 28/04/19 → 1/05/19 |
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- 1 Finished
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Exploiting Self-Interference in Full-Duplex Relay Communications: Signal Decoding and Energy Harvesting
Ku, M.-L. (PI)
1/08/18 → 31/07/19
Project: Research