This paper studies the capacity region of asynchronous multiple access channel (MAC) with faster-thanNyquist (FTN) signaling. We first express the capacity region in the frequency domain. Next, we calculate an achievable rate region in time domain and prove that it is identical to the capacity region calculated in the frequency domain. Our analysis confirms that asynchronous transmission and FTN bring in significant gains.

翻译：本文研究非同步多重接入通道(MAC)的能力区域,其信号速度比Nyquist(FTN)快。我们首先表达频率域的能力区域。接下来,我们在时间域中计算一个可实现的速率区域,并证明它与频率域中计算的能力区域相同。我们的分析证实,非同步传输和FTN带来重大收益。