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http://dx.doi.org/10.7236/JIIBC.2021.21.1.43

Adaptive Detector Design for the Performance Improvement of Massive Antenna Systems  

Seo, Bangwon (Division of Electrical, Electronic, and Control Engineering, the Institute of IT Convergence Technology (IICT), Kongju National University)
Publication Information
The Journal of the Institute of Internet, Broadcasting and Communication / v.21, no.1, 2021 , pp. 43-48 More about this Journal
Abstract
One of the effective ways to increase data transmission rate is to use massive antenna technique where tens or hundreds of antennas are deployed in base station and spatial diversity gain is improved by multiuser method. If multiuser method is applied, there will be inter-user interference and maximal ratio combiner (MRC) is conventionally used to reduce the complexity of the receiver and to eliminate interference. However, as the number of mobile devices increases, the performance of the conventional receiver becomes deteriorated. To solve this problem, we propose a new detector that completely eliminates the interference from the registered devices and reduces that from the unregistered devices. Then, to reduce the complexity of the proposed scheme, we propose adaptive algorithm of the proposed scheme. Through simulation, we show that the proposed scheme has better bit error rate performance than the conventional scheme.
Keywords
massive antenna system; uplink; receiver design; adaptive receiver;
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