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Conference Paper
A New Lattice Representation and Sub-Optimal Decoding for ATSC 3.0 MIMO
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- Authors
- Hyeongseok Kim, Woon Hyun Lee, Myeonggil Yeom, Jeongchang Kim, Sung Ik Park, Namho Hur
- Issue Date
- 2018-06
- Citation
- International Symposium on Broadband Multimedia Systems and Broadcasting (BMSB) 2018, pp.1-4
- Publisher
- IEEE
- Language
- English
- Type
- Conference Paper
- Abstract
- This paper presents a new lattice representation for ATSC 3.0 MIMO which transforms 2×2 complex channel model into 4×4 real-valued linear system. It provides a better understanding of the ATSC 3.0 MIMO precoding and allows the design of simple decoding algorithms. Based on the new lattice representation, a new maximum-likelihood (ML) decoding algorithm is derived. Also, a sub-optimal decoding algorithm based on successive interference cancellation is proposed. The simulation results show that the new ML decoding achieves similar performance to the conventional ML decoder. Furthermore, the sub-optimal decoding algorithm can significantly reduce the decoding complexity.
- KSP Keywords
- ATSC 3.0, Complex channel, Linear systems, MIMO precoding, ML decoder, Maximum likelihood (ML) decoding, Optimal decoding, Real-valued, Simple decoding, Successive Interference Cancellation, channel model