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A Note on 8-QAM+ Sequences Fanxin ZENG Xiaoping ZENG Zhenyu ZHANG Guixin XUAN Publication IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Vol.E97-A No.3 pp.888-893 Publication Date: 2014/03/01 Online ISSN: 1745-1337 DOI: 10.1587/transfun.E97.A.888 Print ISSN: 0916-8508 Type of Manuscript: LETTER Category: Communication Theory and Signals Keyword: complementary sequences, 8-QAM+ constellation, ternary, autocorrelation, Full Text: PDF(205.6KB)>>
Summary: This letter presents three methods for producing 8-QAM+ sequences. The first method transforms a ternary complementary sequence set (CSS) with even number of sub-sequences into an 8-QAM+ periodic CSS with both of the period and the number of sub-sequences unaltered. The second method results in an 8-QAM+ aperiodic CSS with confining neither the period nor the number of sub-sequences. The third method produces 8-QAM+ periodic sequences having ideal autocorrelation property on the real part of the autocorrelation function. The proposed sequences can be potentially applied to suppression of multiple access interference or synchronization in a communication system. | ||||||||||
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