Title :
OFDM-CPM BER Performance in SUI Multipath Channels
Author :
Vakily, V.T. ; Montazeri, Am
Author_Institution :
Electr. Eng. Dept., Iran Univ. of Sci. & Technol., Tehran
Abstract :
This paper presents the application of Orthogonal frequency domain modulation-Continuous Phase Modulation (OFDM-CPM) in multipath Standard University Interim (SUI) channels. It is shown that, in addition to OdB Peak to Average Power Ratio (PAPR) and power efficiency, uncoded OFDM-CPM exploits the frequency diversity of multipath channel. Taking into account the Input Power Backoff (IBO), OFDM-CPM is shown to outperform OFDM at high bit energy-to-noise density ratios (Eb/N0). However, at low Signal to Noise Ratio (SNR), the OFDM-CPM phase demodulator receiver suffers from a threshold effect. Simulation results in SUI channels confirm the analysis.
Keywords :
OFDM modulation; continuous phase modulation; demodulation; error statistics; fading channels; multipath channels; radio receivers; BER performance; OFDM-CPM phase demodulator receiver; continuous phase modulation; energy-to-noise density ratio; frequency diversity; input power backoff; orthogonal frequency domain modulation; peak-to-average-power-ratio; signal-to-noise-ratio; standard university interim multipath fading channel; threshold effect; Bit error rate; Demodulation; Frequency diversity; Frequency domain analysis; Frequency modulation; Multipath channels; OFDM modulation; Peak to average power ratio; Phase modulation; Signal to noise ratio;
Conference_Titel :
Circuits and Systems for Communications, 2008. ICCSC 2008. 4th IEEE International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-1707-0
Electronic_ISBN :
978-1-4244-1708-7
DOI :
10.1109/ICCSC.2008.191
