...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Information Theory, IEEE Transactions on >On the Benefits of Partial Channel State Information for Repetition Protocols in Block Fading Channels
【24h】

On the Benefits of Partial Channel State Information for Repetition Protocols in Block Fading Channels

机译：关于部分衰落信道中重复协议的部分信道状态信息的好处

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This paper studies the throughput performance of hybrid automatic repeat request (HARQ) protocols over block fading Gaussian channels. It proposes new protocols that use the available feedback bit(s) not only to request a retransmission, but also to inform the transmitter about the instantaneous channel quality. An explicit protocol construction is given for any number of retransmissions and any number of feedback bits. The novel protocol is shown to simultaneously realize the gains of HARQ and of power control with partial channel state information. Remarkable throughput improvements are shown, especially at low and moderate signal-to-noise ratio (SNR), with respect to protocols that use the feedback bits for retransmission request only. In particular, for the case of a single retransmission and a single feedback bit, it is shown that the repetition is not needed at low SNR where the throughput improvement is due to power control only. On the other hand, at high SNR, the repetition is useful and the performance gain comes from a combination of power control and ability to make up for deep fades.
机译：本文研究了块衰落高斯信道上混合自动重发请求（HARQ）协议的吞吐性能。它提出了新的协议，该协议使用可用的反馈位不仅请求重传，而且还通知发送器瞬时信道质量。对于任意数量的重传和任意数量的反馈位，都给出了明确的协议构造。示出了新颖的协议以部分信道状态信息同时实现HARQ和功率控制的增益。对于仅将反馈位用于重传请求的协议，显示了显着的吞吐量改进，尤其是在低和中等信噪比（SNR）的情况下。特别地，对于单个重发和单个反馈比特的情况，示出了在吞吐量提高仅由于功率控制而导致的低SNR下不需要重复。另一方面，在高SNR情况下，重复是有用的，并且性能增益来自功率控制和弥补深度衰落的能力的结合。

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