Impulsive Noise Cancellation in OFDM System Using Low Density Parity Check  

作　　者：Attia Irum Abdul Muiz Fayyaz Sara Ayub Mudassar Raza Majed Alhaisoni Muhammad Attique Khan Abdullah Alqahtani Heebum Kim Byeong-Gwon Kang 

机构地区：[1]Department of Computer Science,University of Wah,Wah Cantt,47040,Pakistan [2]Balochistan University of Information Technology,Engineering and Management Sciences,Quetta,Balochistan [3]Department of Computer Science,COMSATS University Islamabad,Wah Campus,Pakistan [4]Computer Sciences Department,College of Computer and Information Sciences,Princess Nourah Bint Abdulrahman University,Riyadh 11671,Saudi Arabia [5]Department of Computer Science,HITEC University,Taxila,Pakistan [6]College of Computer Engineering and Sciences,Prince Sattam Bin Abdulaziz University,Al-Kharj,Saudi Arabia [7]Department of ICT Convergence,Soonchunhyang University,Korea

出　　处：《Computer Systems Science & Engineering》2023年第7期1265-1276,共12页计算机系统科学与工程（英文）

基　　金：This research was supported by the MSIT(Ministry of Science and ICT),Korea;under the ICAN(ICT Challenge and Advanced Network of HRD)program(IITP-2022-2020-0-01832)supervised by the IITP(Institute of Information&Communications Technology Planning&Evaluation);the Soonchunhyang University Research Fund。

摘　　要：An effective communication application necessitates the cancellation of Impulsive Noise(IN)from Orthogonal Frequency Division Multiplexing(OFDM),which is widely used for wireless applications due to its higher data rate and greater spectral efficiency.The OFDM system is typically corrupted by Impulsive Noise,which is an unwanted short-duration pulse with random amplitude and duration.Impulsive noise is created by humans and has non-Gaussian characteristics,causing problems in communication systems such as high capacity loss and poor error rate performance.Several techniques have been introduced in the literature to solve this type of problem,but they still have many issues that affect the performance of the presented methods.As a result,developing a new hybridization-based method is critical for accurate method performance.In this paper,we present a hybrid of a state space adaptive filter and an information coding technique for cancelling impulsive noise from OFDM.The proposed method is also compared to Least Mean Square(LMS),Normalized Least Mean Square(NLMS),and Recursive Least Square(RLS)adaptive filters.It has also been tested using the binary phase-shift keyed(BPSK),four quadrature amplitude modulation(QAM),sixteen QAM,and thirty-two QAM modulation techniques.Bit error Rate(BER)simulations are used to evaluate system performance,and improved performance is obtained.Furthermore,the proposed method is more effective than recent methods.

关 键 词：Impulsive noise adaptive filter OFDM NLMS RLS 

分 类 号：TP39[自动化与计算机技术—计算机应用技术]