Performance Analysis of CP-OFDM with Different fading channels with Energy Efficient Binary Power ControlJournal: International Journal of Research in Science & Technology (Vol.1, No. 5)
Publication Date: 2014-06-23
Authors : K.Murali; N.Ramesh Babu; K.Ramya;
Page : 14-17
Keywords : OFDM; ZF and MMSE Equalizer; Multipath fading channels; energy efficiency.;
The main idea between OFDM is, the so called, Multi Carrier Modulation (MCM) transmission technique. The performance is calculated in terms of Bit Error Rate (BER) versus the Signal to Noise Ratio (SNR). In this project we discuss the BER performance of the MIMO-OFDM system with two different equalizers (ZF and MMSE) for various modulation techniques i.e. BPSK, QPSK, QAM using multipath fading channels i.e. AWGN (Additive White Gaussian Noise), Rayleigh and Rician channel. The multicarrier modulation is employed, which gives advantages like inter symbol interference (ISI) reduction, high data rate, high reliability and better performance in multipath fading. The simulation results show that, with MMSE and ZF equalizers, the BER performance is better in MMSE equalizer. Further we analyze in different fading channels for various modulation techniques in both the equalizers. We explore the idea of optimizing the energy efficiency for MIMO-OFDM wireless communication systems while maintaining a given QoS demand.
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Last modified: 2014-06-23 23:34:05