Abstract
Given the massive increase in network infrastructure required to provide the high capacities expected in current wireless systems due to the exponential growth in mobile data consumption, substantial improvement in energy efficiency of the current 4G systems is necessary. High energy efficiency results in low operational cost and sustainable network deployment. In this paper, we propose a new receiver puncturing technique and a novel energy efficient dynamic resource allocation scheme. Improvements in BER performance and 20%~25% transmit-energy expenditure reduction, as compared to conventional proportional fair resource allocation schemes, are shown by both link level and system level simulations of a multi-cell downlink orthogonal frequency-division multiple access (OFDMA) system. Finally, the complexity issues inherent to the proposed technique are also evaluated.
| Original language | English |
|---|---|
| Article number | 8474015 |
| Pages (from-to) | 366-373 |
| Journal | Journal of Communications and Networks |
| Volume | 20 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 1 Aug 2018 |
| MoE publication type | A1 Journal article-refereed |
Funding
This work was partially supported by the European Commission in the framework of the H2020-EUJ-02-2018 project 5G-Enhance (Grant agreement no. 815056).
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 7 Affordable and Clean Energy
Keywords
- Energy efficient wireless communication
- orthogonal frequencydivisionmultiple access (OFDMA)
- orthogonalfrequency-division multiplexing (OFDM)
- resource allocation
- waterfillingalgorithm.
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