Filtered Orthogonal Frequency Division Multiplexing: A Waveform Candidate for 5G
Journal Title: American journal of Engineering Research - Year 2018, Vol 7, Issue 1
Abstract
The emerging Internet of Things will make the next generation 5G systems to support a broad range of diverse needs with greater efficiency requirements. The new class of services will need a higher data rates, to handle these demands, the lowest layer of the 5G systems must be flexible. Therefore, the waveform will have an important role in offering these new requirements. These new waveforms should enable efficient multiple access in order to handle the requirements of the future wireless communication systems which should have a variety of traffic types. This means that the corresponding required waveforms should be able to handle as much different type of traffic as possible in the same band. This paper presents the filtered orthogonal frequency division multiplexing waveform, it compares it to the original cyclic prefix OFDM applied in the 4G systems today. These new waveforms will be more robust against the time frequency synchronization problem, it has the potential for mixing different traffic specifications, and supports the scenarios of spectrum fragmentation, due to the improvement in the localization of spectrum. As a conclusion, these waveforms have a good potential in synchronicity and orthogonality and they allow us to drop some amount of signaling when supporting a large number of users. In the same time, they support all multiple input and multiple output (MIMO) scenarios and applications. for these reasons, these waveforms will be promising for 5G systems. some simulation results are shown, which demonstrate the potential of this technology.
Authors and Affiliations
Alaa Ghaith
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