Comparative Study on Trellis-Coded 32-Level APSK Schemes
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- SATO Eiichi
- Department of Information and Electronics Engineering, Niigata Institute of Technology
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- NAKAJIMA Shigeo
- Department of Information and Electronics Engineering, Niigata Institute of Technology
Bibliographic Information
- Other Title
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- トレリス符号化32値APSK方式の比較検討
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Description
Multi-level Trellis-Coded Modulation (TCM) schemes have been studied for use with digital radio communication systems. Among these TCM schemes, we have already reported the optimum signal constellation of a rate-3/4 Trellis-Coded (TC) 16-level Amplitude-Phase-Shift-Keying (APSK) modulation scheme. In this paper, we investigate the various signal allocations (32-Circular, 32(16, 11, 5)-Circular, 32(24, 8)-Circular, 32-Cross, 32-Square, 32-Hexagonal, 32-Triangular) of a rate-4/5 32-level APSK scheme, and evaluate the free distance(minimum Euclidean distance) and the bit error probability under the same peak power condition. It is found that the 32(24, 8)-Circular type which shows the largest value of free distance is the optimum signal constellation.
Journal
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- Technical report of IEICE. SAT
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Technical report of IEICE. SAT 98 (91), 9-14, 1998-05-29
The Institute of Electronics, Information and Communication Engineers
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Details 詳細情報について
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- CRID
- 1571980077283138176
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- NII Article ID
- 110003193442
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- NII Book ID
- AN10012987
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- Text Lang
- ja
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- Data Source
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- CiNii Articles