首页> 外文期刊>IEICE Transactions on Communications >Adaptive Modulation and Power Allocation Technique for LDPC-Coded MIMO-OFDMA Cellular Systems
【24h】

Adaptive Modulation and Power Allocation Technique for LDPC-Coded MIMO-OFDMA Cellular Systems

机译:LDPC编码的MIMO-OFDMA蜂窝系统的自适应调制和功率分配技术

获取原文
获取原文并翻译 | 示例
           

摘要

An adaptive transmission scheme, in which the work in [3] is extended to multiuser environment, is proposed for LDPC-coded MIMO-OFDMA cellular systems that employ FDD by considering active user selection and sub-channel power allocation. The performance of the proposed scheme is obtained from simulation and compared with that of the conventional scheme using mean SNR only. It is shown that the proposed scheme can provide up to 5.5 dB gain over the conventional scheme at the expense of only 6 more bits in feedback information.
机译:通过考虑主动用户选择和子信道功率分配,针对采用FDD的LDPC编码MIMO-OFDMA蜂窝系统,提出了一种自适应传输方案,其中[3]中的工作扩展到了多用户环境。拟议方案的性能是通过仿真获得的,并与仅使用平均SNR的常规方案进行了比较。结果表明,与传统方案相比,所提出的方案可以提供高达5.5 dB的增益,但只需要在反馈信息中再增加6位即可。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号