The performance of complex spreading codes within a Massive MIMO OFDM-based system with relays

Madalina-Georgiana Berceanu; Carmen Florea; Razvan Craciunescu

doi:10.1117/12.2643286

2 March 2023 The performance of complex spreading codes within a Massive MIMO OFDM-based system with relays

Madalina-Georgiana Berceanu, Carmen Florea, Razvan Craciunescu

Proceedings Volume 12493, Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies XI; 124932X (2023) https://doi.org/10.1117/12.2643286
Event: Advanced Topics in Optoelectronics, Microelectronics and Nanotechnologies 2022, 2022, Constanta, Romania

Abstract

Our world is in a continuous evolution from all points of view, therefore there are new needs for which support must be provided and for which a series of new techniques have been proposed. In the field of wireless communications, we can talk about non-orthogonal multiple access (NOMA) technique, which is included in the 5G standard, that can offer an increased quality of service (QoS) to end users irrespective of their position within the cell or distortion factors. This paper presents a new set of complex spreading codes that fall in the coverage area of the 5G NOMA-based technique scheme. The creation of the new, aforementioned, set of complex codes starts from Walsh- Hadamard orthogonal spreading codes. Their performance will be tested using Monte Carlo Matlab simulations for bit error rate (BER) versus signal-to-noise ratio (SNR). The performance of the system will be tested in different scenarios, where the number of antennas at the receiver, the length of the complex spreading codes and the number of active users vary.

Citation Download Citation

Madalina-Georgiana Berceanu, Carmen Florea, and Razvan Craciunescu "The performance of complex spreading codes within a Massive MIMO OFDM-based system with relays", Proc. SPIE 12493, Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies XI, 124932X (2 March 2023); https://doi.org/10.1117/12.2643286

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