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基于相位旋转的坐标交织分布式空时码 被引量：2

Co-ordinate Interleaved Distributed Space-time Code Based on Phase Rotation
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摘要 两天线的中继网络中,坐标交织分布式空时码(CIDSTC)的设计未考虑到信道状态信息(CSI)。针对此问题,该文提出了一种基于相位旋转的坐标交织分布式空时码(PR-CIDSTC),中继节点将其发送信号旋转适当的角度,该角度由接收端根据CSI以最小化成对差错概率(PEP)为目标而设计并反馈到发送端。仿真结果显示,误码率(BER)为10?5时,PR-CIDSTC只需2 bit的反馈量就获得了1.5 dB的增益。 The Channel State Information（CSI） is not taken into consideration in Co-ordinate Interleaved Distributed Space-Time Code（CIDSTC） for two-antenna-relays networks.For this issue,CIDSTC based on Phase Rotation（PR-CIDSTC） is proposed,in which relays rotate their transmitted signals with certain angles.Since these angles are designed to minimize Pair Error Probability（PEP）,the performance is enhanced.Simulation demonstrates that the proposed scheme provides a 1.5 dB gain at Bit Error Rate（BER） of over PR-CIDSTC with only 2 bit feedback amount.
作者 田心记 袁超伟 王秋才 赵伟
机构地区 北京邮电大学信息与通信工程学院
出处 《电子与信息学报》 EI CSCD 北大核心 2011年第5期1131-1135,共5页 Journal of Electronics & Information Technology
基金 国家自然科学基金(60872149)资助课题
关键词 坐标交织分布式空时码 相位旋转 反馈 可靠性 信道状态信息 Co-ordinate Interleaved Distributed Space-Time Code（CIDSTC） Phase rotation Feedback Reliability Channel State Information（CSI）
分类号 TN911.22 [电子电信—通信与信息系统]
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共引文献12

同被引文献16

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电子与信息学报
2011年 第5期

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