Energy-Aware Wireless Relay Selection in Load-Coupled OFDMA Cellular Networks
2017 (English)In: IEEE Communications Letters, ISSN 1089-7798, E-ISSN 1558-2558, Vol. 21, no 1, p. 144-147Article in journal (Refereed) Published
Abstract [en]
We investigate transmission energy minimization via optimizing wireless relay selection in orthogonal-frequency-division multiple access 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 computational complexity, a partial optimality condition is derived for providing insights in respect of designing an effective and efficient algorithm. Numerical results show the resulting algorithm achieves high energy performance.
Place, publisher, year, edition, pages
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC , 2017. Vol. 21, no 1, p. 144-147
Keywords [en]
Heterogeneous network; wireless relay; OFDMA; energy efficiency
National Category
Telecommunications
Identifiers
URN: urn:nbn:se:liu:diva-136083DOI: 10.1109/LCOMM.2016.2615604ISI: 000393788000036OAI: oai:DiVA.org:liu-136083DiVA, id: diva2:1084737
Note
Funding Agencies|Swedish Research Council, Sweden; Linkoping-Lund Excellence Center in Information Technology (ELLIIT), Sweden; European Union [FP7-PEOPLE-2012-IAPP: 324515, H2020-MSCA-2014-RISE: 645705, FP7-MSCA-2012-RISE: 318992]; European FP7 Marie Curie IOF project [329313]
2017-03-272017-03-272019-05-09