Izvorni znanstveni članak
https://doi.org/10.24138/jcomss.v2i1.301
Multi-code Multicarrier CDMA: Performance Analysis
Taeyoon Kim
; Wireless Networking and Communications Group in the Department of Electrical and Computer Engineering at The University of Texas at Austin, Austin, TX 78712 USA
Jeffrey G. Andrews
; Wireless Networking and Communications Group in the Department of Electrical and Computer Engineering at The University of Texas at Austin, Austin, TX 78712 USA
Jaeweon Kim
; Wireless Networking and Communications Group in the Department of Electrical and Computer Engineering at The University of Texas at Austin, Austin, TX 78712 USA
Theodore S. Rappaport
; Wireless Networking and Communications Group in the Department of Electrical and Computer Engineering at The University of Texas at Austin, Austin, TX 78712 USA
Sažetak
A new multi-code multicarrier code division multiple access (MC-MC-CDMA) system is proposed and analyzed in a frequency selective fading channel. By allowing each user to transmit an M-ary code sequence, the proposed MC-MC-CDMA system can support various data rates as required by next generation standards without increasing the interference which is common in general multicarrier CDMA systems. The bit error rate of the system is analytically derived in frequency selective fading, with Gaussian noise and multiple access interference. The results show that the proposed MC-MC-CDMA system clearly outperforms both single-code multicarrier CDMA (MC CDMA) and single-carrier multi-code CDMA in a fixed bandwidth allocation. This indicates that MC-MC-CDMA can be considered for next generation cellular systems.
Ključne riječi
multi-code; multicarrier CDMA; code division multiple access (CDMA); 4G cellular; time-frequency two dimensional gain
Hrčak ID:
180754
URI
Datum izdavanja:
27.3.2006.
Posjeta: 1.370 *