Title page for ETD etd-0605103-160256

Type of Document Master's Thesis
Author Vaddiraja, Radhika
Author's Email Address rvaddi1@lsu.edu
URN etd-0605103-160256
Title Generalized D-Sequences and Their Application to CDMA Systems
Degree Master of Science (M.S.)
Department Electrical & Computer Engineering
Advisory Committee
Advisor Name Title
Subhash Kak Committee Chair
Hsiao-Chun Wu Committee Member
Suresh Rai Committee Member
  • signal to interference ratio
  • direct sequence spread spectrum
  • decimal sequences
  • sequence length
Date of Defense 2003-04-08
Availability unrestricted
Code Division Multiple Access (CDMA), a form of spread spectrum communications is used widely in cellular telephony. CDMA systems employ Walsh-Hadamard orthogonal codes, jointly with Pseudo-Noise (PN) sequences, Gold sequences and Kasami sequences to achieve spreading. This thesis investigates properties of generalized d-sequences and their applications as spreading sequences in CDMA systems. The correlation properties of these sequences are studied. The autocorrelation function of these sequences is not exactly two-valued but the cross correlation values are zero for certain class of these sequences. The zero cross correlation property can be useful in solving the near-far problem in CDMA communication systems, thus obviating the need for power control. The performance of these sequences is analyzed and their application to CDMA systems is investigated.
  Filename       Size       Approximate Download Time (Hours:Minutes:Seconds) 
 28.8 Modem   56K Modem   ISDN (64 Kb)   ISDN (128 Kb)   Higher-speed Access 
  Vaddiraja_thesis.pdf 1.15 Mb 00:05:18 00:02:44 00:02:23 00:01:11 00:00:06

Browse All Available ETDs by ( Author | Department )

If you have more questions or technical problems, please Contact LSU-ETD Support.