A family of spread-sequences for CDMA system in a multipath fading channel

被引:0
作者
Nallanathan, A [1 ]
Chan, SC [1 ]
Ng, TS [1 ]
机构
[1] Univ Hong Kong, Dept Elect & Elect Engn, Pokfulam Rd, Hong Kong, Peoples R China
来源
1999 IEEE 49TH VEHICULAR TECHNOLOGY CONFERENCE, VOLS 1-3: MOVING INTO A NEW MILLENIUM | 1999年
关键词
D O I
暂无
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
A new class of orthogonal code-division multiple access (CDMA) system is developed. The key characteristic of the system is that the data symbols are spreaded by a spread-sequence that is longer than the period of the symbol and hence overlapped with the neighboring symbols. Using this approach, temporal diversity is incorporated with other diversities. Due to the temporal diversity, the proposed CDMA system performs well in fading environment. In this paper, a method for designing such a spread-sequence using filter bank theory is presented. The length of the spread-sequence could be varied according to the requirement. Simulation results show that the proposed spread-sequence based system yields lower BER than the conventional gold codes based DS/CDMA system.
引用
收藏
页码:1814 / 1818
页数:5
相关论文
共 50 条
[41]   Hybrid diversity combining techniques for DS‐CDMA over a multipath fading channel [J].
M.A. Do ;
S.Y. Wu .
Wireless Networks, 1997, 3 :155-158
[42]   Robust Channel Estimation Under Impulsive Noise for Multipath Fading CDMA Systems [J].
Rizaner, Ahmet ;
Ulusoy, Ali Hakan .
WIRELESS PERSONAL COMMUNICATIONS, 2013, 69 (04) :1427-1433
[43]   Robust Channel Estimation Under Impulsive Noise for Multipath Fading CDMA Systems [J].
Ahmet Rizaner ;
Ali Hakan Ulusoy .
Wireless Personal Communications, 2013, 69 :1427-1433
[44]   Performance analysis of TCM/DS-CDMA in Nakagami fading multipath channel [J].
Kim, MS ;
Lee, HS .
IEICE TRANSACTIONS ON COMMUNICATIONS, 2000, E83B (01) :96-98
[45]   Particle swarm optimization for multiuser asynchronous CDMA detector in multipath fading channel [J].
Wen, Jyh-Horng ;
Chang, Chuan-Wang ;
Hung, Ho-Lung .
WSEAS Transactions on Computers, 2008, 7 (07) :909-918
[46]   Channel estimation and signal detection for MC-CDMA in multipath fading channels [J].
Iraji, S ;
Sipilä, T ;
Lilleberg, J .
PIMRC 2003: 14TH IEEE 2003 INTERNATIONAL SYMPOSIUM ON PERSONAL, INDOOR AND MOBILE RADIO COMMUNICATIONS PROCEEDINGS, VOLS 1-3 2003, 2003, :2286-2290
[47]   Comparison of multicarrier DS-CDMA broadcast systems in a multipath fading channel [J].
Lee, D ;
Milstein, LB .
IEEE TRANSACTIONS ON COMMUNICATIONS, 1999, 47 (12) :1897-1904
[48]   Novel optimum signature sequences in MC-CDMA system with frequency selective fading channel [J].
Tansongcharoen, P ;
Kunaruttanapruk, S ;
Kunabut, P ;
Kanchanawat, R ;
Jitapunkul, S .
PROCEEDINGS OF THE 3RD IEEE INTERNATIONAL SYMPOSIUM ON SIGNAL PROCESSING AND INFORMATION TECHNOLOGY, 2003, :359-362
[49]   Performance analysis of MC-DS-CDMA system on multipath fading [J].
Hu, M. (tgyxhmk@163.com), 1600, Huazhong University of Science and Technology (41)
[50]   Performance of space-time block-coded MC-CDMA system in multipath fading channel [J].
Li, H ;
Yang, W ;
Tan, ZH ;
Cheng, SX .
IEEE 2005 International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications Proceedings, Vols 1 and 2, 2005, :1546-1550