Analysis of Out-of-band Emission Reduction for 5G Wireless Communication Transmitter

Abstract

The cellular systems of the Fourth Generation (4G) have been optimized to provide high data rates and reliable coverage to mobile users. Cellular systems of the next generation will face more diverse application requirements: the demand for higher data rates exceeds 4G capabilities; battery-driven communication sensors need ultra-low power consumption; and control applications require very short response times. A unified physical layer waveform, referred to as generalized frequency division multiplexing (GFDM), to address these requirements. This paper conserns several prototype filters(shaping filter) in term of reducing Out Of Band( OOB) emission, then analyze the reducing OOB emission of Fifth Generation( 5G) waveform with comparing between several techniques. Choosing the pulse shaping filters affects the properties of the GFDM signal so we can use for different usages. The GS insertion technique is useful in reducing the OOB radiation but it is not good for application that requires low latency. Pinching technique is most effective in combination with a higher number of guard carriers.In summary, the flexible nature of GFDM makes this waveform a suitable candidate for future 5G systems.