Title
Method of Generating Multiple Sets of Orthogonal Codes with Wide Choice of Spreading Factors.
Abstract
This paper presents a generic method to construct multiple sets of orthogonal codes for application in direct sequence spread spectrum systems. The plurality of orthogonal sets is generated using any single two-level autocorrelation sequence of period one less than the desired spreading factor of the orthogonal codes. The proposed method hence generates orthogonal codes of all spreading factors for which a corresponding two-level autocorrelation sequence exists. The resulting orthogonal sets with wide choice of spreading factors is desirable in synchronous direct sequence spread spectrum systems. The sets can be generated such that they do not contain the codeword with single polarity as in the case of Walsh-Hadamard codes and orthogonal sets generated from cyclic shifts of two-level autocorrelation sequences. This renders all codes in the generated sets with an effective spreading gain. The generation method also encompasses a procedure to generate N-1 sets with low inter-set correlation for application to oversaturated spread spectrum systems.
Year
DOI
Venue
2012
10.1109/WCL.2012.070512.110270
IEEE Wireless Commun. Letters
Keywords
Field
DocType
Correlation,Multiaccess communication,Wireless communication,Gold,Delay,Computers,Error correction
Spreading factor,Mathematical optimization,Combinatorics,Block code,Algorithm,Linear code,Code word,Direct-sequence spread spectrum,Mathematics,Spread spectrum,Autocorrelation
Journal
Volume
Issue
ISSN
1
5
2162-2337
Citations 
PageRank 
References 
0
0.34
4
Authors
4
Name
Order
Citations
PageRank
Sujit Jos153.52
Jinesh P. Nair2115.78
Debarati Sen311619.01
Arun Naniyat410.71