Performance Evaluation of Adaptive Algorithm with Linear Equalizer in MIMO OFDMA System
Keywords:Inter Symbol Interference (ISI), Linear Equalizer (LE), Recursive Least Square (RLS), Pairwise Error Probability (PEP),
AbstractOrthogonal frequency division multiple access (OFDMA) is one of digital modulation technique that allow many user to access during the same time and provide high speed data rate transmission in wireless communication system. Due to multipath propagation in real environment, wireless performance is degrading due to Inter Symbol Interference (ISI). In order to overcome this problem, Recursive Least Square (RLS) algorithm with Linear Equalizer will be used in this research. By adding space time frequency block code (STFBC) and multiple input multiple output (MIMO) antenna, this combination will prove their ability to reduce ISI and enhance system performance. The objective of this paper is also to evaluate Pairwise Error Probability (PEP) performance using combination of adaptive algorithm and LE. The PEP simulation results show the improvement of performance after reducing ISI and also prove that STFBC was able to achieve maximum diversity order in the MIMO OFDMA system.
G.R., Gaurshetti and S.V., Khobragade .2013. Orthogonal Cyclic Prefix for Time Synchronization in MIMO-OFDM. (5):81–85.
S., Sezginer and H.,Sari. Improving OFDMA Performance Using Code-Division Multiplexing. Wirel. World Res. Forum. 1(6):1–6.
T.H., Kim and J.K, Kang, 2012. A high-speed adaptive linear equalizer with ISI level detection using periodic training pattern. 2012 Int. SoC Des. Conf. 419–422. Nov.
C., Kaur and R., Mehra , 2011. High Speed and Cost Efficient Adaptive Equalizer for ISI Removal. 3(1):249–256.
A., Kanchan and S., Dwivedi, 2012. Comparison of BER Performance in OFDM Using Different Equalization Techniques. 6:139–143.
P., Payaswini and D. H. Manjaiah , 2012. Analysis of Effect of Cyclic Prefix on Data Rates in OFDM Modulation Techniques. Int. J. Adv. Comput. Math. Sci. 3(4):465–470.
Z.A., Qureshi , 2008. Decision Feedback Equalization in OFDM with Long Delay Spreads. May.
G.L., Stüber , J.R., Barry, S. W., Mclaughlin , S., Member , Li Y. E.
G., Ingram M. A. N. N., and.T.G., Pratt , 2004. Broadband IMOOFDM Wireless Communications. 92(2):271–294,
W.,Su, Z., Safar, M., Olfat , and K., Liu , 2003. Obtaining full-diversity space-frequency codes from space-time codes via mapping. Signal Process. IEEE. 51(11):2905–2916.
M.N., Seyman, 2012. MIMO-OFDM Channel Estimation Using ANFIS. 4(4):75–78.
S., Srikanth and P.A. M., Pandian, 2010. Orthogonal frequency division multiple access in WiMAX and LTE — A comparison. 2010 Natl. Conf. Commun. 1–5, Jan.
S.M., Sulong, A., Idris, and S.S., Sarnin , 2015. Mitigation of ISI using EW-RLS with Linear Equalizer STFBC MIMO OFDMA System. in
th International Conference on Computer Science and Computational Mathematics,
A.,Idris, N., Azlizan, and S.M., Sulong , 2015. Improving
Transmission Rate with Efficient Bandwidth by using Diversity
Technique for MIMO-OFDMA Resource Allocation. J. Electr. Syst.
A.,Idris and K., Dimyati. 2011. Diversity technique for multiple input multiple output orthogonal frequency division multiplexing (MIMOOFDM) system using a new subcarrier mapping scheme. Int. J. 6(16):3879–3884.
D., Dao and C., Tellambura. 2005. Intercarrier interference selfcancellation space-frequency codes for MIMO-OFDM. Veh. Technol. IEEE. 54(5):1729–1738.
A., Idris ,S.M., Sulong , N., Ya’acob , and S.S., Sarnin. 2014. Reduction of ISI using different equalization of adaptive algorithm for mobile WiMAX communication system. Appl. (ISWTA). 75–80.
S.S., Sarnin and S.M., Sulong. 2015. MSE and Tracking of Channel Estimation Based on DD-EW-RLS for Indoor and Outdoor Environment in. Int. J. Futur. Comput. Commun. 4(3):184–187.
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