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http://dx.doi.org/10.7840/kics.2012.37A.9.728

Transmission Performance Analysis for Terrestrial Digital Broadcast Systems According to Hierarchical Modulation Factor(α)  

Lee, Sungyoon (충남대학교 정보통신공학과 이동멀티미디어 통신 연구실)
Kim, Jae-Kil (충남대학교 정보통신공학과 이동멀티미디어 통신 연구실)
Lee, Jewon (충남대학교 정보통신공학과 이동멀티미디어 통신 연구실)
Yun, Seonhui (충남대학교 정보통신공학과 이동멀티미디어 통신 연구실)
Ahn, Jae Min (충남대학교 정보통신공학과 이동멀티미디어 통신 연구실)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.37A, no.9, 2012 , pp. 728-737 More about this Journal
Abstract
An analytical method for identifying terrestrial broadcasting coverages is proposed for a terrestrial broadcasting transmission system adopting a hierarchical modulation technique. Bit Error Rates(BERs) are derived for hierarchically modulated non-uniform QAM constellations based on the Q-function analysis in AWGN environments. The derived BERs depend on the hierarchical modulation factor ${\alpha}$(HMF) and could be mapped to the broadcasting coverages according to the link budget analysis based on the log-distance path loss model. Finally the broadcasting coverage ratios for high priority(HP) streams and low priority(LP) streams are calculated and presented for the determination of the HMF.
Keywords
Hierarchical Modulation; Hierarchical Modulation Fator(${\alpha}$); DTV; Log-distance path-loss model; Effective SNR;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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