Power division multiplexing

At present, the non-orthogonal multiple access (NOMA) protocol has been considered as an emerging access technology for the near 5G networks. However, the related resource division multiplexing technique has not been well studied. Referring to the development of TDMA and FDMA, they are all based on the fundamental studies of time division multiplexing (TDM) and frequency division multiplexing (FDM), respectively. Accordingly, this paper proposes a new multiplexing technique, termed as power division multiplexing (PDM), to support the power division based MAC protocol which the NOMA belongs to. In PDM, we consider the transmit power is divided into multiple power segments (PSs) similar to the time-slots/sub-bands in TDM/FDM. The multiple PSs are used to concurrently deliver different informations in a same channel. By analysis, we prove that PDM outperforms TDM and FDM with regard to QoS requirement. Thus, the proposed PDM has potentials for the future cellular network.