TY  - EJOU
AU  - Prabhu, M. 
AU  - Kumar, B. Muthu 

TI  - OFDM-CFO and Resource Scheduling Algorithm Using Fuzzy Linear-CFO
T2  - Intelligent Automation \& Soft Computing

PY  - 2023
VL  - 35
IS  - 2
SN  - 2326-005X

AB  - Orthogonal Frequency-Division Multiplexing (OFDM) is the form of a digital system and a way of encoding digital data across multiple frequency components that are used in telecommunication services. Carrier Frequency Offset (CFO) inaccuracy is a major disadvantage of OFDM. This paper proposed a feasible and elegant fuzzy-based resource allocation technique, that overcomes the constraints of the CFO. The suggested Fuzzy linear CFO estimation (FL-CFO) not only estimates the CFO with increased precision but also allocates resources effectively, and achieves maximum utilization of dynamic resources. The suggested FL-CFO error estimation algorithm in OFDM systems employing 1-bit Quadrate errors ADC (1-bit QE) is utilized to extract the precise CFO. Additionally, the base station (BS) manages the Resource Units (RU), which could be used to distribute resources in such a manner that the user requests are met. To assign resources to a certain job, fuzzy rules are devised. When the residence duration exceeds the resource requirement time then the particular resources are provided to the highest-priority jobs. As a result, the job performance will not be halted due to a lack of allocated resources. Performance metrics such as utilization, rate of failure, and life span, as well as energy consumption, are used to assess the proposed FL-CFO.
KW  - Orthogonal frequency division multiplexing (OFDM); carrier frequency offset (CFO); fuzzy linear CFO estimation (FL-CFO); resource units (RU); base station (BS); 1-bit quadrate errors ADC (1-bit QE)

DO  - 10.32604/iasc.2023.027823