TY  - JOUR
T1  - Enhanced architecture for residue number system-based CDMA for high-rate data transmission.
JF  - IEEE Transactions on wireless communications
A1  - Madhukumar, A.S
LA  - English
UL  - https://tuklas.up.edu.ph/Record/UP-99796217609624939
AB  - This paper presents an advanced architecture for residue number system (RNS)-based code-division multiple-access (CDMA) system for high-rate data transmission by combining RNS representation, phase shift keying/quadrature amplitude modulation (PSK/QAM) and orthogonal modulation. The residues obtained from a fixed number of bits are again divided into spread code index and data symbol for modulation. The modulated data symbol is spread using the indexed orthogonal codes and transmitted through a communication channel. The proposed system uses a lower number of orthogonal codes than conventional RNS-based CDMA and the performance is comparable. The computational complexity of the proposed system is compared against alternative schemes such as M-ary CDMA and conventional RNS-based CDMA. The modified system is simulated extensively for different channel conditions and the results are discussed.
KW  - CDMA.
KW  - PSK.
KW  - QAM.
KW  - Code division multiple access.
KW  - Communication channel.
KW  - Computational complexity.
KW  - High-rate data transmission.
KW  - Modulated data symbol.
KW  - Orthogonal codes.
KW  - Orthogonal modulation.
KW  - Phase shift keying.
KW  - Quadrature amplitude modulation.
KW  - Residue number system.
KW  - Spread code index.
ER  -