Title :
New Orthogonal Code with MPSK for Next-Generation CDMA Systems
Author :
Wang, Yih-Fuh ; Huang, Mao-Jie
Author_Institution :
Department of Information Management and Institute of Applied Information, Leader University, Tainan, Taiwan, (e-mail: yfwang@mail.leader.edu.tw)
Abstract :
A novel Orthogonal Expanded Walsh Code (OEWC) suited in DS-CDMA spreading is presented in this paper. Although some processing gain increased, the OEWC can increase channel anti-interference and transmission security since of its elongated horizontal length. Moreover, it can be applied with MPSK to modulate one of M signal units expressed with a chip of OEWC. This plus the higher security and anti-interference abilities make OEWC of interest to designers of next-generation CDMA systems.
Keywords :
Direct-Sequence Code-Division Multiple-Access; M-ary Phase-Shift Keying; Orthogonal Expanded Walsh Code; Arrayed waveguide gratings; Decoding; Error correction; Error correction codes; Filtering; Modulation coding; Multiaccess communication; Phase modulation; Security; Transmission line matrix methods; Direct-Sequence Code-Division Multiple-Access; M-ary Phase-Shift Keying; Orthogonal Expanded Walsh Code;
Conference_Titel :
Wireless Pervasive Computing, 2006 1st International Symposium on
Print_ISBN :
0-7803-9410-0
DOI :
10.1109/ISWPC.2006.1613566
