A novel multiple access diamond channel model

This paper introduces a new multiuser communication model, which we call multiple access diamond channel. In this channel model, many sources transmit their signals to a destination in the case of no direct links between the end terminals. Therefore, we employ two parallel relays to extend transmission to the destination. Further, we specifically characterize two different transmission schemes along with their respective achievable rate regions. Then, we develop an outer bound to the transmission in each scheme. Moreover, we present many numerical examples to mainly compare between the two different transmission schemes and to distinguish the case for which we attain the capacity region.

本文介绍了一种新的多用户通信模型，我们称之为多址菱形信道。在这种信道模型中，在终端之间没有直接链路的情况下，许多信源将其信号发送到一个目的地。因此，我们采用两个并行的中继来将传输扩展到目的地。此外，我们具体描述了两种不同的传输方案以及它们各自可实现的速率区域。然后，我们为每种方案中的传输建立了一个外界。而且，我们给出了许多数值示例，主要是为了比较两种不同的传输方案，并区分我们获得容量区域的情况。