An efficient channel model for OFDM and time domain single carrier transmission using impulse responses. | [Mehran University Research Journal of Engineering and Technology • 2012]

Author(s):

1. Tariq Jamil Saifullah Khanzada: Department of Computer Systems Engineering, Mehran University of Engineering and Technology, Jamshoro, Pakistan

2. Sheeraz Memon: Department of Computer Systems Engineering, Mehran University of Engineering and Technology, Jamshoro, Pakistan

3. Naveed Ahmed Jaffari: Department of Computer Systems Engineering, Mehran University of Engineering and Technology, Jamshoro, Pakistan

Abstract:

The OFDM (Orthogonal Frequency Division Multiplexing) is well-known, most utilized wideband communication technique of the current era. SCT (Single Carrier Transmission) provides equivalent performance in time domain while decision equalizer is implemented in frequency domain. SCT annihilates the ICT (Inter Carrier Interference) and the PAPR (Peak to Average Power Ratio) which is inherent to OFDM and degrades its performance in time varying channels. An efficient channel model is presented in this contribution, to implement OFDM and SCT in time domain using impulse responses. Both OFDM and SCT models are derived dialectically to model the channel impulse responses. Our model enhances the performance of time domain SCT compared with OFDM and subsides the PAPR and ICI problems of OFDM. SCT is implemented at symbol level contained in blocks. Simulation results implementing Digital Radio Monadiale (DRM) assert the performance gain of SCT over OFDM.

Page(s): 95-100

DOI: DOI not available

Published: Journal: Mehran University Research Journal of Engineering and Technology, Volume: 31, Issue: 1, Year: 2012

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