CARRIER FREQUENCY OFFSET ESTIMATION IN GENERALIZED FREQUENCY DIVISION MULTIPLEXING SYSTEM

• Main Author: NIYATI HASYIM - NIM : 23216095 , RAHMAH
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/30134
• Institution: Institut Teknologi Bandung

<p align="justify">Long term evolution (LTE) technology in the telecommunication era will soon be replaced with 5G technology that has better performance in latency, speed, and capacity. One of the latest developments for 5G technology is machine type communication (MTC) which is an application for internet of things (IoT). MTC applications provide services that require low power, cost-efficient devices, as well as loose synchronization techniques. If in previous LTE or 4G technology orthogonal frequency division multiplexing (OFDM) is a waveform that is very proud because of its orthogonality, then to have a synchronization technique that is not complicated this waveform will be difficult to use because it must maintain the orthogonality of its subcarrier. Hence, generalized frequency division multiplexing (GFDM) is introduced as a new waveform for 5G technology. In this research we will find a technique that can estimate carrier frequency offset (CFO) in GFDM system. GFDM systems have poor performance when CFOs occur so CFO estimation techniques for GFDM systems are indispensable. The simulation is to compare the CFO estimation technique using CP and symbol training for MTC application scenario in GFDM system. CP technique used in this study is a modification of CP techniques in general to widen the estimation range whereas symbol training techniques use a number of symbols raised to be used as preamble used to estimate CFO. The results also show that both techniques can widen the range of CFO estimates. <p align="justify"> <br />