Exploiting Joint Base Station Equipped Multiple Antenna and Full-Duplex D2D Users in Power Domain Division Based Multiple Access Networks

Abstract

In this paper, we investigate power domain division-based multiple access (PDMA) to support the base stations (BS) equipped with multiple antennas to serve mobile users. Such a system deploys multiple input single output (MISO)-based wireless transmission and a full-duplex (FD) scheme. Furthermore, such MISO PDMA system consists of BS employing transmit antenna selection to reduce complexity in signal processing at the receivers. We distinguish two kinds of mobile users, device-to-device (D2D) users and traditional users. In such MISO PDMA, there exists a trade-off between outage performance of each PDMA user and power allocation factors. Since the implementation of the FD scheme at PDMA users, bandwidth efficiency will be enhanced despite the existence of self-interference related to such FD. In particular, exact expressions of outage probability are derived to exhibit system performance with respect to D2D users. Finally, valuable results from the simulated parameters together with the analytical results show that MISO PDMA can improve its performance by increasing the number of transmit antennas at the BS.

Transmit Antenna Selection Schemes for NOMA with Randomly Moving Interferers in Interference-Limited Environment

“…dx. (20) in which (c) is obtained via integration-by-part and (d) is via substituting (10) into (19). Furthermore, by applying (11), we found that the above integrals are similar to (16) and thus can be solved similarly.…”

“…In NOMA systems, successive interference cancellation (SIC) equipping at receivers is required to remove multi-user interference (MUI) caused by the same frequency channel providing multiplexing several users. Many advantages benefit from practical aspects of NOMA systems, where the compatibility of NOMA exhibits system enhancement together with 5G key technologies such as device-to-device networks [6,7], cognitive radio [8,9], multi-antenna system with beamforming scheme [10][11][12].…”

Two-Way Transmission for Low-Latency and High-Reliability 5G Cellular V2X Communications

“…Recently, cooperative communications have been actively studied, whose major benefits are wider cell coverage and higher spectrum efficiency (SE). Cooperative power domain non-orthogonal multiple access (CNOMA) have received a lot of attention as an example of cooperative communications [11]. In CNOMA, near users (NU) obtain their own signals by decoding the superposed signal and forward far users' (FU) signals to FUs who have weaker links with a base station (BS).…”

Two policies for wireless non‐orthogonal multiple access systems: System model and performance enhancement of far user

“…There are more than schemes related to multiple access have been introduced in the Third Generation Partnership Project Radio Access Network (3GPP RAN) meeting, such as sparse code multiple access (SCMA), 1 power‐domain NOMA, 2 interleave division multiple access (IDMA), 3 multi‐user shared access (MUSA), 4 and pattern division multiple access (PDMA), 5 to name a few. Several new techniques for multiple access have studied based on the concept of NOMA as investigations in previous studies 6‐10 . By arranging different power levels to the users operating in power‐domain NOMA, multiple users can operate in each subcarrier and the diversity on that subcarrier can be achieved.…”