Title :
Analytical Performance Evaluation of Hierarchical 16 QAM for Multicast/Broadcast Transmission
Author :
Lee, Seung Joon ; Kim, Kyung-Ah ; Jung, Jin Su ; Lee, Seong-Choon
Author_Institution :
Dept. of Electron. Eng., Kangwon Nat. Univ., Chuncheon, South Korea
fDate :
10/1/2012 12:00:00 AM
Abstract :
An information theoretical approach is applied to analyze the performance of hierarchical 16 quadrature amplitude modulation (QAM). Using the approach, it is quantitatively evaluated how much the hierarchical 16 QAM outperforms non-hierarchical, conventional 16 QAM. More specifically, two kinds of performance comparisons are examined. First, the performance of the hierarchical QAM combined with layered source encoding (such as scalable video coding) is compared to that of the non-hierarchical QAM without layered source encoding. Second, the former is compared to the performance of the non-hierarchical QAM, also with layered source encoding.
Keywords :
broadcast communication; multicast communication; quadrature amplitude modulation; source coding; wireless channels; analytical performance evaluation; hierarchical 16QAM; hierarchical quadrature amplitude modulation; layered source encoding; multicast-broadcast transmission; nonhierarchical QAM; wireless channel; Encoding; Mutual information; Quadrature amplitude modulation; Signal to noise ratio; Time frequency analysis; Video coding; Broadcast; coverage; hierarchical QAM; multicast; mutual information; scalable video coding;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2012.082012.112599
