Link adaptation for energy-efficient uplink coordinated multi-point receptions
dc.contributor.author | Nam, Young-Han | |
dc.contributor.author | Lie, Lingjia | |
dc.contributor.author | Miao, Guowang | |
dc.contributor.author | Zhang, Charlie Jianzhong | |
dc.date.accessioned | 2014-06-13T14:42:50Z | |
dc.date.available | 2014-06-13T14:42:50Z | |
dc.date.issued | 2011-11-23 | |
dc.identifier.citation | Nam, Young-Han; Lingjia Liu, Guowang Miao and Charlie Jianzhong Zhang "Link adaptation for energy-efficient uplink coordinated multi-point receptions." EURASIP Journal on Wireless Communications and Networking 2011, 2011:184. http://dx.doi.org/10.1186/1687-1499-2011-184 | |
dc.identifier.uri | http://hdl.handle.net/1808/14061 | |
dc.description.abstract | We investigate link adaptation methods for energy-efficient uplink coordinated multi-point receptions. A system model for practical cellular networks is introduced, in which only a subset of base stations participates in cooperative link adaptation and cooperative decoding for uplink transmissions. To cope with channel-state-information (CSI) mismatch incurred from the system model, link adaptation controllers implementing rate back-off from the maximum achievable rate calculated with the mismatched CSI is introduced. From analytical and simulation results, it is concluded that under a certain condition, the rate back-off does not help to improve energy efficiency, where, for example, the condition holds when the CSI errors are modeled as additive Gaussian random variables. Furthermore, energy efficiency of multi-user spatial-division-multiple-access uplink transmissions is studied in isolated cooperative cellular networks. In this scenario, an analytical expression for the optimal link adaptation achieving maximum energy efficiency is obtained. | |
dc.publisher | Springer | |
dc.rights | This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. | |
dc.rights.uri | http://creativecommons.org/licenses/by/2.0 | |
dc.subject | Corrdinated multipoint receptions | |
dc.subject | Comp | |
dc.subject | Energy efficiency | |
dc.title | Link adaptation for energy-efficient uplink coordinated multi-point receptions | |
dc.type | Article | |
kusw.kuauthor | Liu, Lingjia | |
kusw.kudepartment | Department of Electrical Engineering and Computer Science | |
kusw.oastatus | fullparticipation | |
dc.identifier.doi | 10.1186/1687-1499-2011-184 | |
kusw.oaversion | Scholarly/refereed, publisher version | |
kusw.oapolicy | This item meets KU Open Access policy criteria. | |
dc.rights.accessrights | openAccess |
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Except where otherwise noted, this item's license is described as: This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.