Title :
Code Assignment Algorithm for 2-Dimensional Block Spread CDMA Uplink in Multi-Cell System
Author :
Wang, Sha ; Yu, Qiyue ; Meng, Weixiao
Author_Institution :
Dept. of Commun. Eng., Harbin Inst. of Technol., Harbin, China
Abstract :
2-dimensional (2D) block spread CDMA makes it possible to achieve multiple-access interference (MAI) free uplink transmission with low-complexity single-user detection and therefore is very attractive. In this paper, we propose a code assignment algorithm for 2D block spread CDMA uplink in multi-cell systems. It is shown by the computer simulation that in the frequency-selective fading channel, the code reuse coefficient achieved by the proposed code algorithm is about four times that of traditional algorithms, while satisfying the requirement of quality of service (QoS).
Keywords :
cellular radio; code division multiple access; fading channels; radiofrequency interference; spread spectrum communication; 2-dimensional block spread CDMA uplink; code assignment algorithm; frequency-selective fading channel; low-complexity single-user detection; multi-cell system; multiple-access interference; quality of service; 3G mobile communication; Bit error rate; Computer simulation; Frequency-selective fading channels; Multiaccess communication; Multicarrier code division multiple access; Multiple access interference; Quality of service; Signal to noise ratio; Wideband;
Conference_Titel :
Image and Signal Processing, 2009. CISP '09. 2nd International Congress on
Conference_Location :
Tianjin
Print_ISBN :
978-1-4244-4129-7
Electronic_ISBN :
978-1-4244-4131-0
DOI :
10.1109/CISP.2009.5300889
