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Hierarchical Circular theta-QAM
- Ahn, Seongjin;
- Yoon, Dongweon
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4초록
Hierarchical modulation provides unequal error protection to transmitted data according to their relative importance. In this article, hierarchical modulation constellation based on circular theta-quadrature amplitude modulation (CTQAM), 4/M-CTQAM, M = 2(k), k >= 4, is proposed. We provide a construction method and bit-to-symbol mapping for the proposed hierarchical modulation constellation. We then examine the bit error rate performance of 4/M-CTQAM and validate the theoretical results through computer simulations in additive white Gaussian noise (AWGN) and Rayleigh fading channels.
키워드
Hierarchical modulation; quadrature amplitude modulation (QAM); unequal error protection; Bit error rate; Fading channels; Gaussian noise (electronic); Rayleigh fading; White noise; Additive White Gaussian noise; Bit error rate (BER) performance; Bit-to-symbol mapping; Construction method; Hierarchical modulation; Unequal error protections; Quadrature amplitude modulation
- 제목
- Hierarchical Circular theta-QAM
- 저자
- Ahn, Seongjin; Yoon, Dongweon
- 발행일
- 2021-03
- 유형
- Article
- 권
- 67
- 호
- 1
- 페이지
- 343 ~ 350
- 언어
- ENG
- 출판사
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- 발행국가
- 미국
- 분량
- 8 페이지
- ISSN
- E 1557-9611
P 0018-9316