Performance Evaluation of Filter Bank Multi-Carrier Modulation in Multipath Fading Channels

Abstract

Filter Bank Multi-Carrier (FBMC) modulation is one of the most significant enablers for future 5G technologies. It is a modulation technique for resolving inter-carrier and inter-symbol interference using two possible methods: Frequency Spreading (FS) and Poly Phase (PP) implementation. Cyclic prefixes are used in OFDM for signal robustness, but they have some disadvantages in orthogonal frequency division multiplexing. FBMC is used to solve the disadvantages of OFDM and save a bandwidth. In this paper, performance comparisons in terms of symbol error rate between OFDM and FBMC systems in AWGN and multipath fading channels are presented. The obtained results show that FBMC over performs OFDM in multipath fading channels and the improvement margin is increased as the number of subcarriers decreased.

Hybrid Multiple Access Techniques Performance Analysis Of Dynamic Resource Allocation

“…In general, the MA techniques are classified as either NOMA or OMA. The OFDMA, used in some cellular networks as an OMA technique, suffers from low SE as the network density increases [2,3]. There is bandwidth wastage in OMA since it is based on allocating one orthogonal RB to each user.…”