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http://dx.doi.org/10.7840/kics.2015.40.11.2121

Design and Performance Evaluation of Load-Modulation MIMO System Using High-Order Modulation  

Lee, Dong-Hyung (SK Telecom)
An, Changyoung (Department of Electronics Engineering, Chungbuk National University)
Ryu, Heung-Gyoon (Department of Electronics Engineering, Chungbuk National University)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.40, no.11, 2015 , pp. 2121-2130 More about this Journal
Abstract
In this paper, we analyze LM-MIMO (load-modulation multiple-input multiple-output) system with single RF chain. And then, we confirm that load modulation technique can support generation of high-order m-PSK modulation and m-QAM modulation in LM-MIMO system. Finally we evaluate performance of LM-MIMO system with load modulation. Conventional MIMO system requires a number of RF chains for expansion of MIMO dimension. A number of RF chains can cause various problems. On the other hand, although LM-MIMO system is expanded, LM-MIMO system requires single RF chain only. Therefore, LM-MIMO system has low-complexity and low power consumption. As results, we can confirm that load modulation of T-model can modulate high-order m-PSK and m-QAM singal. Also, we can confirm that $4{\times}4$ LM-MIMO system using load modulation has a similar performance to conventional $4{\times}4$ MIMO system.
Keywords
Load-modulation; LM-MIMO; MIMO; single RF chain; massive MIMO;
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Times Cited By KSCI : 1  (Citation Analysis)
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