Deriving accurate channel capacity of multi-channel relay systems

本研究的目的是阐明多信道无线通信系统的信道容量，该系统使用中继技术来扩展从发送端的可达区域。为了达到这个目标，我们考虑多信道系统中每个信道的最优功率分配。作为中继技术，我们提出了一个简单的放大和转发中继，根据每个信道状态的质量的信道切换方法，和基于信道状态信息的信道块的切换方法。最后，针对每种中继技术提出了相应的最优功率分配方法，并推导出信道容量。

The objective of this study is to clarify the channel capacity of multi-channel wireless communication systems which use relay techniques to expand the reachable area from a sender. Toward the objective, we consider optimal power allocation to each channel of the multi-channel system. As the relay techniques, we propose a simple amplify-and-forward relay, a channel switching method according to the quality of each channel state, and a switching method of chunk of channels based on the channel state information. As the result, we proposed corresponding optimal power allocation methods to each relay technique and derived channel capacities.