DOIONLINE 
DOIONLINE Publish In |
International Journal of Electrical, Electronics and Data Communication (IJEEDC)-IJEEDC |
 Journal Home Volume Issue |
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Issue |
Volume-2,Issue-6 ( Jun, 2014 ) | |||||||||
Paper Title |
Error Rate Analysis Of OFDM And M-QAM For Digital Audio Signal Processing In Wireless Channel | |||||||||
Author Name |
Shreedhar A Joshi, Rukmini T S, Mahesh H M, Manjunath Hosamani | |||||||||
Affilition |
Department of Electronics & Communication, SDM College of Engineering, Dharwad, India Department of Electronics & Communication, N M Institute of Technology (NMIT), Bangalore, Department of Applied Electronics, Bangalore University, Bangalore, India Saankhya Labs PVT Ltd, Bangalore, India | |||||||||
Pages |
32-36 | |||||||||
Abstract |
Abstract- Orthogonal frequency-division multiplexing (OFDM) is a frequency division multiplexing (FDM) scheme used as a digital multi-carrier modulation method. A large number of closely-spaced orthogonal sub-carriers are used to carry data. The data is divided into several parallel data streams or channels, one for each sub-carrier. Each sub-carrier is modulated with a conventional modulation scheme such as Quadrature Amplitude Modulation (QAM) at a low symbol rate, maintaining total data rates similar to conventional single-carrier (SC) modulation schemes in the same bandwidth. This Proposed work analyses and compares OFDM and M- QAM constellation mapping. The Mat lab / Simulink simulation results show that OFDM signals are having low bit error rate (Low BER) than QAM signals. | |||||||||
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