Copyright © 2018 Authors. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. International Journal of Engineering & Technology, 7 (3.15) (2018) 16-18 International Journal of Engineering & Technology Website: www.sciencepubco.com/index.php/IJET Research paper Arithmetic and Huffman Coding using Quasi-Cyclic Low Density Parity Check Techniques with F-OFDMA for 5G System Azlina Idris 1 *, Nurul Aini Amran 2 , Mohd Syarhan Idris 3 , Idris Taib 4 , Murizah Kassim 5 , Suzi Seroja Sarnin 6 , Wan Norsyafizan W Muhammad 7 , Norsuzila Ya’acob 8 1235678 Faculty of Electrical Engineering, Universiti Teknologi MARA (UiTM) Wireless Communication Technology (WiCOT) 40450 Shah Alam, Selangor, Malaysia. 4 Infrastructure University Kuala Lumpur, 43000 Kajang, Selangor, Malaysia. *Corresponding author E-mail: azlina831@salam.uitm.edu.my Abstract The rising demand of the future 5th generation (5G) wireless systems has led to the development of wireless communication technolo- gies that can provide higher user capacity. Therefore, filtered orthogonal frequency division multiple access (F-OFDMA) was introduced to accommodate large number of users. F-OFDMA has the advantage over OFDM since it is capable of overcoming the high side lobes and increasing the spectrum utilization by eliminating the out-of-band emission which can degrade the system’s performance. In this paper, a joint method between two block coding techniques (Arithmetic coding (AC) and Huffman Coding (HC)) with an error correcting code (Quasi-Cyclic Low Density Parity Check (QC-LDPC))was proposed. AC-QC-LDPC and HC-QC-LDPC schemes were compared in terms of BER performance. Based on the simulation results, AC-QC-LDPC technique has been proven to give the 44.75% BER im- provement to the F-OFDMA system which outperforms the HC-QC-LDPC technique. It is clear from the results that Arithmetic coding always give better BER improvements compared to Huffman coding with QC-LDPC. Keywords: Filtered-Orthogonal Frequency Division Multiple Access (F-OFDMA), Arithmetic Coding (AC), Huffman Coding (HC), Quasi-Cyclic Low Density Parity Check (QC-LDPC) 1. Introduction In the recent exponential growth of modern wireless communica- tion, the development of wireless technologies is expected to ac- commodate the increasing number of consumers that demands for high data rate wireless communication access. Due to this, effi- cient and easily accessible services of wireless applications are highly demanded by many telecommunication companies all over the world in order to satisfy their customers’ needs [1]. This ge n- eration of wireless technologies is now becoming an essential platform that can provide short and long range communications which can connect worldwide users. Many current wireless appli- cations such as internet access, mobile computing, and multimedia stream require high data rate wireless communication access in order to suit the recent lifestyle of users. Therefore, the 5th gen- eration wireless system (5G) is the next generation wireless net- works standard that can fulfill these criteria as it aims for achiev- ing higher user capacity, more reliability and higher data rate than the 4th generation wireless system (4G) [2]. However, one of the most challenging issues that occur in F- OFDMA system includes the high peak to average power ratio (PAPR) in the transmitting signal which causes the system to be- come very sensitive to the non-linear high power amplifier (HPA) at the transmitter [3], [4]. As a result, the degradation of receiver’s detection efficiency increases and the system’s performance is severely reduced [5]. The high PAPR causes the non-linear HPA to produce additional interference into the system which degrades the bit error rate (BER). Since the inter-symbol interference (ISI) is associated with BER, therefore it also increases and becomes a factor for the impairment of the overall system’s performance [6]. Over the years, various techniques have been proposed to address these impairments but they still encounter with some drawbacks in terms of BER degradation and computational complexity [5], [7],[8]. Moreover, research made on BER reduction for F- OFDMA systems are very limited. Block coding techniques such as Arithmetic Coding (AC) and Huffman Coding (HC) are classi- fied as lossless data compression algorithms which can be used to overcome the PAPR problem in OFDM system [9],[10]. However, the BER degradation and computational complexity still need further improving. This paper proposes a joint technique between AC and HC with an error correcting code, QC-LDPC with the aim to further reduce the high BER and give better improvement in 5G system.