Enhanced bit-to-symbol mapping for M-ary θ-QAM
- Authors
- Ahn, Seongjin; Seo, Hyeonho; Yoon, Dongweon
- Issue Date
- Jun-2020
- Publisher
- Institute of Electrical and Electronics Engineers Inc.
- Keywords
- Bit error probability; Bit mapping; Quadrature amplitude modulation
- Citation
- 2020 European Conference on Networks and Communications, EuCNC 2020, pp.296 - 299
- Indexed
- SCOPUS
- Journal Title
- 2020 European Conference on Networks and Communications, EuCNC 2020
- Start Page
- 296
- End Page
- 299
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/3714
- DOI
- 10.1109/EuCNC48522.2020.9200920
- Abstract
- In conventional bit-to-symbol mapping for θ-QAM, the Hamming distance between the symbols with the minimum Euclidean distance is not minimized when θ < 60°, and this undesirably increases the bit error rate (BER). In this paper, we propose an enhanced bit-to-symbol mapping for M-ary θ-QAM, which minimizes the Hamming distance between the symbols with the minimum Euclidean distance even when θ < 60°. By adopting the conventional mapping when θ ≥ 60° and the proposed mapping when θ < 60°, we formulate the overall bit-to-symbol mapping for θ-QAM. To validate the proposed bit-to-symbol mapping, we compare the BERs of the proposed mapping and the conventional one through computer simulations.
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