Energy-Aware Wireless Relay Selection in Load-Coupled OFDMA Cellular Networks
Abstract
We investigate transmission energy minimization via optimizing wireless relay selection in orthogonal-frequency-division multiple access (OFDMA) networks. We take into account the impact of the load of cells on transmission energy. We prove the NP-hardness of the energy-aware wireless relay selection problem. To tackle the computational complexity, a partial optimality condition is derived for providing insights in respect of designing an effective and efficient algorithm. Numerical results show that the resulting algorithm achieves high energy performance.
- Publication:
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arXiv e-prints
- Pub Date:
- October 2016
- DOI:
- 10.48550/arXiv.1610.00982
- arXiv:
- arXiv:1610.00982
- Bibcode:
- 2016arXiv161000982Y
- Keywords:
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- Computer Science - Information Theory
- E-Print:
- 4 pages, 2 figures