中文摘要：

继电器是在无线通讯的一种有希望的技术。为不同隧道条件有几中继模式。在这篇文章，由目的地和继电器的一个适应中继模式选择计划被建议。建议计划改变在继电器车站提交模式的信号。它适应地在 amplify-and-forward (AF ) 之中选择， decode-and-forward (DF ) 和直接模式根据周期的冗余性检查(CRC ) 在继电器和目的地的察觉。而且，块错误率(BLER ) 和产量被采用评估系统性能。模拟结果证明建议计划显著地超过另外的存在中继模式选择计划。

英文摘要：

Relay is a promising technology in wireless communications. There are several relaying modes for different channel conditions In this article, an adaptive relaying mode selection scheme by destination and relay is proposed. The proposed scheme changes the signal forwarding mode at the relay station. It adaptively chooses among amplify-and-forward （AF）, decode-and-forward （DF） and direct mode according to cyclic redundancy check （CRC） detection at relay and destination. Moreover, block error rate （BLER） and throughput are adopted to evaluate system performance. The simulation results demonstrate that the proposed scheme significantly outperforms other existing relaying mode selection schemes.