Title :
Role of Walsh Codes and pseudorandom noise sequences in CDMA
Author :
Chawla, Puneet ; Singh, Balwinder
Author_Institution :
PEC Univ. of Technol., Chandigarh, India
Abstract :
Walsh Codes are a set of orthonormal codes while PN Sequences are statistically random but deterministically formed binary sequences. This paper discusses the basic concepts underlying both sets of codes and some of their practical and interesting properties. Both are extensively used for multiple access channeling methods and data signal modulation particularly in international CDMA standards. Their implementation in CDMA and the factors influencing their relative performance are also explained.
Keywords :
Walsh functions; binary sequences; code division multiple access; pseudonoise codes; random codes; random sequences; CDMA; Walsh codes; binary sequences; data signal modulation; multiple access channeling methods; orthonormal codes; pseudorandom noise sequences; Bandwidth; Correlation; Gold; Interference; Mobile communication; Multiaccess communication; Noise; CDMA; Modulation; PN Sequences; Walsh Codes;
Conference_Titel :
Industrial Engineering and Engineering Management (IEEM), 2014 IEEE International Conference on
DOI :
10.1109/IEEM.2014.7058804
