PERFORMANCE IMPROVEMENT OF OFDM
| Author(s) | : | Vishakha Kulkarni, Vitthal Bhosale |
| Institution | : | Electronics And Telecommunication Department, Deogiri Institute Of Engineering And Management Studies |
| Published In | : | Vol. 5, Issue 4 — April 2018 |
| Page No. | : | 1897-1900 |
| Domain | : | Engineering |
| Type | : | Research Paper |
| ISSN (Online) | : | 2348-4470 |
| ISSN (Print) | : | 2348-6406 |
In the paper the convolution coding and BCH coding is used to analyze the Bit Error Rate performance ofOFDM system over the AWGN channel and only the adaptive modulation is considered. First we have used quadratureamplitude modulation (QAM) and phase shift keying (PSK) to study the OFDM system performance of uncoded adaptivemodulation, for the further improvement of system the exploit convolution coding to OFDM system. In the OFDM systemthe estimation of Signal to noise ratio is done at the receiver and then the feedback channel is used to transmit it to thetransmitter, and to maintain the constant bit error rate lower than requested BER the transmitter selects appropriatemodulation scheme an coding rate based on estimated SNR. By demonstrating the superiority of adaptive modulationschemes compared to fixed transmission schemes the obtained result shows the enhancement in terms of bit error rate(BER) & throughput
Vishakha Kulkarni, Vitthal Bhosale, “PERFORMANCE IMPROVEMENT OF OFDM”, International Journal of Advance Engineering and Research Development (IJAERD), Vol. 5, Issue 4, pp. 1897-1900, April 2018.
