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http://dx.doi.org/10.5762/KAIS.2014.15.11.6838

Novel Soft Decision Generation Technique for Performance Improvement of 3GPP LTE-Advanced Systems with Multiple Antennas  

Park, Jaeyoung (Division of Computer and Telecom. Engineering, Yonsei University)
Kim, Jaekwon (Division of Computer and Telecom. Engineering, Yonsei University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.15, no.11, 2014 , pp. 6838-6844 More about this Journal
Abstract
3GPP LTE-Advanced systems adopt multiple antennas for high speed data transmission. In general, the receiver complexity of a spatially mutiplexed (SM) multiple-input multiple-output (MIMO) system grows in proportion to the number of candidate vectors. A large number of candidate vectors increases the reliability of the soft output values. The maximum likelihood (ML) signal detection with a large number of candidate vectors achieves high performance. On the other hand, low complexity receiver techniques with a small number of candidate vectors provide soft output values, such as low reliability. This paper addresses the improving reliability of the soft output obtained from a small number of candidate vectors. The improved performance of the proposed technique with the aid of computer simulations is reported.
Keywords
3GPP LTE-Advanced; LLR; Signal detection; Soft decision;
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Times Cited By KSCI : 1  (Citation Analysis)
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