Transmission of Physical Layer Network Coding Based on Massive MIMO over Millimeter Wave Channel

Abstract

Massive Multiple Input Multiple Output system and physical layer network coding (PNC) are two important technologies that are considered in new generation networks. In this paper we investigate the effect of increasing the number of antenna elements at user nodes and relay node in the presence of PNC. Two-way wireless relay transmission is considered in conjunction with massive number of antennas at the relay node assuming millimeter wave (mmWave) band channel environment. End-to-end transmission is considered using 3-D QUAsi Deterministic RadIo channel GenerAtor (QuaDRiGa) channel model. The performance measures used are the bit error rate (BER) and throughput. Up to 100% increase in throughput of PNC coded system is obtained. The BER performance is improved only when the number of relay node antennas is much higher than that of the user node. Combining mMIMO with PNC gives better throughput without affecting the BER at high SNR. This is achieved with reasonable number of antennas at the user nodes.

Joint MU-mMIMO-OFDM with Hybrid Beamforming System Spectral Efficiency Improvement based NOMA Technique

“…Conversely, the large size and complexity problems of the antenna arrays with mMIMO can be solved by moving the available radio spectrum toward the millimeter-wave (mmWave) frequency band [7,8]. Moreover, the severe path loss and the propagation effect of the mmWave environment can be compensated through the achieved diversity and spatial multiplexing gains from the mMIMO incorporated with beamforming techniques [9,10].…”