The inter-user interference is a critical performance degradation factor in a full-duplex multi-user system. However, the conventional pre-processing filters, such as null space projection filter and regularized channel inversion filter, are unsuitable for user pre-processing filter when each user has the same number of transmit and receive antennas. Thus, we propose an inter-user-interference cancellation scheme applicable to the users with the same number of transmit and receive antennas. By summing the received signals for two symbol periods, the proposed scheme can cancel inter-user interference and obtain a twofold diversity order. The simulation results show that the proposed scheme obtains higher spectral efficiency than the half-duplex system.
|Journal||Eurasip Journal on Wireless Communications and Networking|
|Publication status||Published - 2018 Dec 1|
Bibliographical noteFunding Information:
This work was supported by LG Electronics Co. Ltd.
This research was supported by LG Electronics Secho Research and Development Campus.
© 2018, The Author(s).
All Science Journal Classification (ASJC) codes
- Signal Processing
- Computer Science Applications
- Computer Networks and Communications