Multicode MIMO systems with quaternary LCZ and ZCZ sequences

被引:12
作者
Yang, Jae-Dong [1 ]
Jin, Xianglan [1 ]
Song, Kyoung-Young [1 ]
No, Jong-Seon [1 ]
Shin, Dong-Joon [2 ]
机构
[1] Seoul Natl Univ, Dept Elect Engn & Comp Sci, Inst New Media & Commun, Seoul 151744, South Korea
[2] Hanyang Univ, Dept Elect & Comp Engn, Seoul 133791, South Korea
关键词
Hadamard codes; low-correlation zone (LCZ) sequences; multicode multiple-input multiple-output (MIMO); wireless local area network (WLAN); zero-correlation zone (ZCZ) sequences;
D O I
10.1109/TVT.2007.914059
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
In this paper, we propose multicode multiple-input-multiple-output (MIMO) systems with quaternary low-correlation zone (LCZ) and zero-correlation zone (ZCZ) sequences as spreading codes. Quaternary LCZ and ZCZ sequences have very low correlation values when the time shifts between these sequences are within the predetermined correlation zone, and thus, the multi-user or multipath interference can be substantially reduced when the delay is within a few chips. The bit error probability of the proposed systems is theoretically analyzed, which is numerically confirmed. It is also numerically shown that the performance of the multicode MIMO systems with quaternary LCZ and ZCZ sequences is better than that of the conventional multicode MIMO systems with quaternary spreading codes constructed from pairs of binary Hadamard codes.
引用
收藏
页码:2334 / 2341
页数:8
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