Investigation of FBMC-OQAM Equalization with Real Interference Prediction Algorithm Properties for MIMO Transmission Scheme

Abstract

Increasing the data transfer rate is an urgent task in cellular, high-frequency (HF) and special communication systems. The most common way to increase the data rate is to expand the bandwidth of the transmitted signal, which is often achieved through the use of multitone systems. One such system is the filter bank multicarrier (FBMC). In addition, speed improvements are achieved using multi-input–multi-output (MIMO) systems. In this study, we developed an algorithm for equalizing FBMC signals with offset-QAM modulation (OQAM) with self-interference compensation due to its correlation properties in a MIMO channel with memory. An analytical derivation of the proposed algorithm and an analysis of the computational complexity are given. According to the results of simulation modeling and a comparative analysis of performance in terms of the bit error rate and error vector magnitude with solutions with similar computational complexity, a similar level of performance was shown compared to a more complex parallel multistage algorithm, and a better performance was demonstrated compared to a one-tap algorithm.

Design and Performance Analysis of the Dynamic Reduction of Intrinsic Interference Suppression and BER using QAM-based FBMC for MU-MIMO Communications

“…Emission of OOB is reduced by pulse shaping data about the carrier of modulation and also throughput is improved by removing CP blocks which are not necessary. FBMC systems [1], [2] are identified as an alternate solution for (OFDM) Orthogonal Frequency Division Multiplexing to communicate in the future with wireless medium and have advantages given as (i) symbol transmission without the use of CP, (ii) suitable time and localization of frequency, (iii) OOB emission is minimized, that is low radiation. These advantages make the adaption of an asynchronous environment.…”