Cancellation Techniques for Co-channel Interference in MIMO-OFDM Systems and Evaluating Their Performance

Varshini Rajesh, A. R. Abdul Rajak


In a wireless communication system, the transmitted signal is exposed to various surfaces where it bounces and results in several delayed versions of the same signal at the receiver end. The delayed signals are in the form of electromagnetic waves that are diffracted and reflected from the various object surfaces. These result in co-channel interferences for wireless systems. MIMO has proven to be a striking solution for the new generation of wireless systems. MIMO-OFDM system with QPSK modulation is considered as the wireless system for studying the performance of interference cancellation techniques. The BER performance is studied in channels such as Rayleigh and Rician Fading Channels. The effects of interference are reduced to a certain extent by the inclusion of CDMA (spread spectrum technique) as Technique 1. The effects of interference on this system have been further reduced using the LMS filter as Technique 2. Hence, to show better performance in MIMO-OFDM systems, it is recommended to employ both CDMA and LMS filters to decrease the effects of co-channel interference. It is observed that the parameter BER reduces as the SNR increases for both these channels.


Doi: 10.28991/esj-2021-01313

Full Text: PDF


MIMO-OFDM; Wireless System; Interference Mitigation; CDMA-LMS.


Dugad, Payal, and Ashok Khedkar. “Performance of OFDM System for AWGN, Rayleigh and Rician Channel.” International Journal of Innovative Research in Computer and Communication Engineering 5, no. 7 (2017).

Tse, David, and Viswanath Pramod. “Fundamentals of Wireless Communication.” Fundamentals of Wireless Communication, (2005). doi:10.1017/CBO9780511807213.

Omijeh, B O, and Ken Saro-wiwa. “Bit Error Rate and Signal to Noise Ratio Performance Evaluation of OFDM System with QPSK and QAM M-Array Modulation Scheme in Rayleigh , Rician and AWGN Channel Using MATLAB / Simulink.” Innovative Systems Design and Engineering 8, no. 4 (2017).

Awon, Nuzhat Tasneem, Md. Ashraful Islam, Md. Mizanur Rahman, and A. Z. M. Touhidul Islam. “Effect of AWGN & Fading (Raleigh & Rician) Channels on BER Performance of a WiMAX Communication System.”. International Journal of Computer Science and Information Security 10, no. 8 (2012).

Ogale, Archana, Shubhangi Chaoudhary, and A. J. Patil. “Performance Evaluation of MIMO-OFDM System Using Matlab® Simulink with Real Time Image Input.” In IFIP International Conference on Wireless and Optical Communications Networks, WOCN, 1–5, 2013. doi:10.1109/WOCN.2013.6616176.

Sinha, Nirmalendu Bikas, R. Bera, S. Manna, Shashank Gupta, and M. Mitra. “Hybrid Technology for next Generation Broad Band Mobile Radio Communications.” 2009 IFIP International Conference on Wireless and Optical Communications Networks, WOCN 2009, 2009. doi:10.1109/WOCN.2009.5010504.

Shah, Yousaf Ali. “Performance Analysis of Multiple Antenna Techniques in Wimax.” Technology, (2010).

Space–time block code, Wikipedia. Available online: _code#Alamouti’s_code (accessed on May 2021).

Ogale, Archana, Shubhangi Chaoudhary, and A. J. Patil. “Performance Evaluation of MIMO-OFDM System Using Matlab® Simulink with Real Time Image Input.” In IFIP International Conference on Wireless and Optical Communications Networks, WOCN, (2013):1-5. doi:10.1109/WOCN.2013.6616176.

Larashati, Giashinta, Rina Pudji Astuti, and Bambang Setia Nugroho. “Modeling of Massive MIMO Transceiver Antenna for Full-Duplex Single-Channel System (in Case of Self Interference Effect).” In Proceedings - International Conference on Signals and Systems, ICSigSys 2017, 1–5, (2017). doi:10.1109/ICSIGSYS.2017.7967021.

Nishizaki, Shun, Toshihiko Nishimura, Takeo Ohgane, and Yasutaka Ogawa. “Performance Comparison of Full-Dimension MIMO Systems with Different Base Station Places.” 2017 International Workshop on Antenna Technology: Small Antennas, Innovative Structures, and Applications, IWAT 2017, (2017):335–38. doi:10.1109/IWAT.2017.7915394.

Buzzi, Stefano, Carmen D’Andrea, Tommaso Foggi, Alessandro Ugolini, and Giulio Colavolpe. “Single-Carrier Modulation versus OFDM for Millimeter-Wave Wireless MIMO.” IEEE Transactions on Communications 66, no. 3 (2018): 1335–48. doi:10.1109/TCOMM.2017.2771334.

Hong, Song Nam, Seonho Kim, and Namyoon Lee. “A Weighted Minimum Distance Decoding for Uplink Multiuser MIMO Systems with Low-Resolution ADCs.” IEEE Transactions on Communications 66, no. 5 (2018): 1912–24. doi:10.1109/TCOMM.2017.2787565.

Loyka, Sergey, and Mahdi Khojastehnia. “Comments on ‘On Favorable Propagation in Massive MIMO Systems and Different Antenna Configurations.’” IEEE Access 7 (2019): 185369–72. doi:10.1109/ACCESS.2019.2960025.

Silva, Shashindra, Masoud Ardakani, and Chintha Tellambura. “Interference Suppression and Energy Efficiency Improvement with Massive MIMO and Relay Selection in Cognitive Two-Way Relay Networks.” IEEE Transactions on Green Communications and Networking 4, no. 2 (2020): 326–39. doi:10.1109/TGCN.2020.2965116.

Ngo, Hien Quoc, Alexei Ashikhmin, Hong Yang, Erik G. Larsson, and Thomas L. Marzetta. “Correction to ‘Cell-Free Massive MIMO versus Small Cells.’” IEEE Transactions on Wireless Communications 19, no. 5 (2020): 3623–24. doi:10.1109/TWC.2020.2974209.

Solodky, Gaston, Oren Longman, Shahar Villeval, and Igal Bilik. “CDMA-MIMO Radar with the Tansec Waveform.” IEEE Transactions on Aerospace and Electronic Systems 57, no. 1 (2021): 76–89. doi:10.1109/TAES.2020.3016876.

Ravalika, Yerpula, and Gihginha Swetha. “Implementation of Non-Linear Adaptive Equalizer for MIMO-OFDM in Wireless Communication.” In Proceedings of the 4th International Conference on Electronics, Communication and Aerospace Technology, ICECA 2020, (2020): 532–37. doi:10.1109/ICECA49313.2020.9297435.

Almohammedi, Ali, and Mohamed Deriche. “LMS for Truncate CSI Feedback in Massive MIMO.” In Proceedings - 2019 International Conference on Computing, Electronics and Communications Engineering, ICCECE 2019, (2019): 241–46. doi:10.1109/iCCECE46942.2019.8941771.

Sethy, Prabira Kumar, and Subrata Bhattacharya. “Interference Cancellation in Adaptive Filtering through LMS Algorithm Using TMS320C6713DSK.” International Journal of Electronics and Communication Engineering 5, no. 2 (2012): 113–24.

Liu, Xiang, and Lajos Hanzo. “Accurate BER Analysis of QPSK Modulated Asynchronous DS-CDMA Systems Communicating over Rayleigh Channels.” In IEEE Vehicular Technology Conference, 4:1640–44, 2006. doi:10.1109/vetecs.2006.1683124.

Cheng, Julian, and Norman C. Beaulieu. “Accurate DS-CDMA Bit-Error Probability Calculation in Rayleigh Fading.” IEEE Transactions on Wireless Communications 1, no. 1 (2002): 3–14. doi:10.1109/7693.975440.

Glisic, Savo G. “Multilayer LMS Interference Suppression Algorithms for CDMA Wireless Networks.” IEEE Transactions on Communications 48, no. 8 (2000): 1413–23. doi:10.1109/26.864178.

Mayyas, K. “Performance Analysis of the Deficient Length LMS Adaptive Algorithm.” IEEE Transactions on Signal Processing 53, no. 8 (2005): 2727–34. doi:10.1109/TSP.2005.850347.

Vasu, Rohit, Abdul Rajak, and Shazia Hassan. “Design and Simulation of Single Ended Double Balanced Rf Gilbert Mixers.” ARPN Journal of Engineering and Applied Sciences 15, no. 20 (2020): 2238–43.

Rajak, A R Abdul, Azeem Gafoor Mohammed, and Deep Sehgal. “Design and Analysis of High-Speed Phase Locked Loop in 180 Nm Technology.” Intelligent Electrical Systems: A Step towards Smarter Earth. Institute of Engineering & Management, at S.N Bose National Centre for Basic Sciences Kolkata, (2020). doi:10.1201/9780429355998-26.

Rajesh, Varshini, and A. R.Abdul Rajak. “Channel Estimation for Image Restoration Using OFDM with Various Digital Modulation Schemes.” In Journal of Physics: Conference Series, 1706:13 –14, (2020). doi:10.1088/1742-6596/1706/1/012076.

Sreejith, Shwetha, and Abdul Rajak. “Study on Optimization of Handoff Process Using Fuzzy Logic for Mobile Communication.” In Journal of Physics: Conference Series, 1706:13 –14, (2020). doi:10.1088/1742-6596/1706/1/012161.

Smrithi, M N, and A R Abdul Rajak. “Design and Implementation of FEC for CDMA System.” In IOP Conference Series: Materials Science and Engineering, 1045:012038, (2021). doi:10.1088/1757-899x/1045/1/012038.

Smrithi, M N, and A R Abdul Rajak. “Design and Implementation of FEC for CDMA System.” IOP Conference Series: Materials Science and Engineering 1045, no. 1 (February 1, 2021): 012038. doi:10.1088/1757-899x/1045/1/012038.

Full Text: PDF

DOI: 10.28991/esj-2021-01313


  • There are currently no refbacks.

Copyright (c) 2021 Abdul Rajak, Varshini Rajesh