scholarly journals Appendix A: Gray Mapping and AGM Schemes for SP Modulation of SizeL = 16

2009 ◽  
pp. 595-599
Keyword(s):  
Gray Mapping

Improvements to APSK constellation with gray mapping

2014 ◽  
Author(s):  
Dazhi He ◽  
Yijun Shi ◽  
Yunfeng Guan ◽  
Yin Xu ◽  
Yao Wang ◽  
...  
Keyword(s):  
Gray Mapping

scholarly journals New Generalized Cyclotomic Quaternary Sequences with Large Linear Complexity and a Product of Two Primes Period

Information ◽  
2021 ◽  
Vol 12 (5) ◽  
pp. 193
Author(s):  
Jiang Ma ◽  
Wei Zhao ◽  
Yanguo Jia ◽  
Haiyang Jiang
Keyword(s):  
Spectral Sequence ◽  
Linear Complexity ◽  
Residue Class ◽  
Important Criterion ◽  
Random Sequences ◽  
Gray Mapping ◽  
Quaternary Sequences ◽  
Hamming Weights ◽  
Residue Class Ring ◽  
Class Ring

Linear complexity is an important criterion to characterize the unpredictability of pseudo-random sequences, and large linear complexity corresponds to high cryptographic strength. Pseudo-random Sequences with a large linear complexity property are of importance in many domains. In this paper, based on the theory of inverse Gray mapping, two classes of new generalized cyclotomic quaternary sequences with period pq are constructed, where pq is a product of two large distinct primes. In addition, we give the linear complexity over the residue class ring Z4 via the Hamming weights of their Fourier spectral sequence. The results show that these two kinds of sequences have large linear complexity.

scholarly journals Quaternary periodic complementary/Z-complementary sequence sets based on interleaving technique and Gray mapping

2012 ◽  
Vol 6 (2) ◽  
pp. 237-247 ◽  
Author(s):  
Fanxin Zeng ◽  
◽  
Xiaoping Zeng ◽  
Zhenyu Zhang ◽  
Guixin Xuan ◽  
...  
Keyword(s):  
Complementary Sequence ◽  
Gray Mapping ◽  
Interleaving Technique

APSK Constellation with Gray Mapping

2011 ◽  
Vol 15 (12) ◽  
pp. 1271-1273 ◽  
Author(s):  
Zaishuang Liu ◽  
Qiuliang Xie ◽  
Kewu Peng ◽  
Zhixing Yang
Keyword(s):  
Gray Mapping

Performance of Iterative MAP Receiver for MIMO-OFDM Channels with Anti-Gray Mapping

2008 ◽  
Author(s):  
Sajid Ahmed ◽  
S. Ahmed ◽  
T. Ratnarajah ◽  
M. Sellathurai ◽  
C. F. N. Cowan
Keyword(s):  
Gray Mapping ◽  
Mimo Ofdm
Sign in / Sign up

Export Citation Format

Share Document