Abstract
Orthogonal frequency-division multiplexing (OFDM) is one of unbeatable multiplexing technique till date. However with increasing version of next generation mobile standards like 5G, the applicability of OFDM is quite questionable. The prime reason behind this is in order to offer higher data rates and extensive networking services in 5G, OFDM will be required to overcome some inherent problems of spectral leakage, power consumption, less supportability of increased channel capacity. The reason community still believes that there is positive scope of OFDM to be applicable in 5G network provided it undergoes certain changes. This paper reviews some of the complimentary waveforms that have been theoretically proven to be adding edge to OFDM system. The paper reviews different waveforms as well as multiple access techniques to be used in designing 5G technology and assess their effectiveness in viewpoint of research applicability and effectiveness towards leveraging 5G.
Highlights
Inter-Band Contiguous Frequency Band A Frequency Band BInter-Band Non-ContiguousInter-Band Frequency Band BThe third approach uses multiple 4G bands for parallel transmission. 5G must support Device-to-Device Communication
It was explored that when Orthogonal frequency-division multiplexing (OFDM) is integrated with different waveforms (e.g. WOLA), the spectral efficiency is found quite maximized with lower design complexity
This paper has presented an elaborated discussion of OFDM and its associated waveforms in order to find their application in generation of mobile communication standard e.g. 5G
Summary
The third approach uses multiple 4G bands for parallel transmission. 5G must support Device-to-Device Communication. The third approach uses multiple 4G bands for parallel transmission. This technique allows two different devices residing within communication range of each other to communicate with each other directly. This virtually means that in case the network operator is not working than both the devices can interact with each other seamlessly
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