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- Title
A Low-Complexity CLSIC-LMMSE-Based Multi-User Detection Algorithm for Coded MIMO Systems with High Order Modulation.
- Authors
Jin Xu; Kai Zhang
- Abstract
In this work, first, a multiuser detection (MUD) algorithm based on component-level soft interference cancellation and linear minimum mean square error (CLSIC-LMMSE) is proposed, which can enhance the bit error ratio (BER) performance of the traditional SIC-LMMSE-based MUD by mitigating error propagation. Second, for non-binary low density parity check (NB-LDPC) coded high-order modulation systems, when the proposed algorithmis integrated with partial mapping, the receiver with iterative detection and decoding (IDD) achieves not only better BER performance but also significantly computational complexity reduction over the traditional SIC-LMMSE-based IDD scheme. Extrinsic information transfer chart (EXIT) analysis and numerical simulations are both used to support the conclusions.
- Subjects
EXTRINSIC information transfer charts; COMPUTER simulation; MULTIUSER detection (Telecommunication); STANDARD deviations; LOW density parity check codes; COMPUTER algorithms; MIMO systems
- Publication
KSII Transactions on Internet & Information Systems, 2017, Vol 11, Issue 4, p1954
- ISSN
1976-7277
- Publication type
Article
- DOI
10.3837/tiis.2017.04.007