Paper Info
Title
Two New Families of Low-Correlation Interleaved QAM Sequences
Abstract
Two families of low correlation QAM sequences are presented here. In a CDMA setting, these sequences have the ability to transport a large amount of data as well as enable variable-rate signaling on the reverse link.The first family ${\cal I}^2{\cal SQ - B}$ is constructed by interleaving 2 selected QAM sequences. This family is defined over M2-QAM, where M= 2m, m茂戮驴 2. Over 16-QAM, the normalized maximum correlation $\overline{\theta}_{\max}$ is bounded above by $ \lesssim 1.17 \, \sqrt{N}$, where Nis the period of the sequences in the family. This upper bound on $\overline{\theta}_{\max}$ is the lowest among all known sequence families over 16-QAM.The second family ${\cal I}^4{\cal SQ}$ is constructed by interleaving 4 selected QAM sequences. This family is defined over M2-QAM, where M= 2m, m茂戮驴 3, i.e., 64-QAM and beyond. The $\overline{\theta}_{\max}$ for sequences in this family over 64-QAM is upper bounded by $ \lesssim 1.60 \, \sqrt{N}$. For large M, $\overline{\theta}_{\max} \lesssim 1.64 \, \sqrt{N}$. These upper bounds on $\overline{\theta}_{\max}$ are the lowest among all known sequence families over M2-QAM, M= 2m, m茂戮驴 3.
Year
DOI
Venue
2008
10.1007/978-3-540-85912-3_12
SETA
Keywords
Field
DocType
reverse link,low correlation qam sequence,new families,normalized maximum correlation,qam sequence,large amount,known sequence family,large m,low-correlation interleaved qam sequences,upper bound,cdma setting,cal sq,variable rate
Combinatorics,Upper and lower bounds,Bounded set,QAM,Galois extension,Mathematics,Bounded function,Low correlation
Conference
Volume
ISSN
Citations 
5203
0302-9743
4
PageRank 
References 
Authors
0.59
11
3
Name
Order
Citations
PageRank
Gagan Garg1152.41
P. Vijay Kumar21708158.95
C. E. Veni Madhavan336682.05