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A General Construction of Sequences with Good Autocorrelation over the 16-QAM Constellation
Xuan ZHANG Jing QIN Qiaoyan WEN Jie ZHANG
Publication
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Vol.E95-A
No.10
pp.1801-1805 Publication Date: 2012/10/01 Online ISSN: 1745-1337
DOI: 10.1587/transfun.E95.A.1801 Print ISSN: 0916-8508 Type of Manuscript: LETTER Category: Coding Theory Keyword: 16-QAM, binary sequences, interleaved sequences, multiple sequences, Gray mapping, autocorrelation,
Full Text: PDF>>
Summary:
In this paper, we introduce a construction of 16-QAM sequences based on known binary sequences using multiple sequences, interleaved sequences and Gray mappings. Five kinds of binary sequences of period N are put into the construction to get five kinds of new 16-QAM sequences of period 4N. These resultant sequences have 5-level autocorrelation {0, ±8, ±8N}, where ±8N happens only once each. The distributions of the periodic autocorrelation are also given. These will provide more choices for many applications.
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