I am working on a system whereby a smartphone may receive signals simultaneously from different sources. As we know, the fading and pathloss will make the transmitters send their traffic with different modulation schemes. I have also done some research on the transmission and reception for a smartphone and understand that a smartphone with single antenna can transmit and receive at the same time.
However, there is few materials mentions that if a smartphone can demodulate two signals modulated with different MCS simultaneously. The only paper I found(https://www.researchgate.net/publication/322615927_Reconfigurable_Modulation_Scheme_for_Communication_System) was published in 2018. It states that they are proposing a communication system that can use different modulation/demodulation schemes at a given point of time, but it also mentions that the "current system" can only use one scheme at a time.
My questions: Can a smartphone support different modulation/demodulation schemes with single receiver antenna at a time now? Or if multiple antennas are required to achieve this?