Ofdm-cpm Ber Performance and FOBP Under IEEE802.16 Scenario

Alimohammad  Montazeri

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Ofdm-cpm Ber Performance and FOBP Under IEEE802.16 Scenario

Alimohammad Montazeri

Pages - 64 - 72 | Revised - 30-09-2009 | Published - 21-10-2009

Published in Signal Processing: An International Journal (SPIJ)

Volume - 3 Issue - 4 | Publication Date - August 2009 Table of Contents

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References | Abstracting & Indexing

KEYWORDS

OFDM-CPM, PAPR, SUI Multipath Channel Model, IEEE802.16, Fractional out of band power(FOBP)

ABSTRACT

The application of Orthogonal frequency domain modulation-Continuous Phase Modulation (OFDM-CPM) in multipath Stanford University Interim (SUI) channels is presented in this paper. OFDM-CPM is proposed for IEEE 802.16 standards as an alternative technique of orthogonal frequency division multiplexing (OFDM) in physical layer. It is shown that, in addition to 0dB Peak to Average Power Ratio (PAPR) and power efficiency, un-coded OFDM-CPM exploits the frequency diversity of multipath channel. Taking into account the Input Power Back off (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. In addition, this paper compares the spectral fractional out of band power of OFDM-CPM for different modulation indices.

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REFERENCES

S. C. Thompson, A. U. Ahmed, J. G. Proakis, J. R. Zeidler, “ Constant envelope OFDM phase modulation: spectral containment, signal space properties and performance, ” IEEE MILCOM, Vol.2, pp.1129-1135, 31Oct.-3Nov 2004.

S. C. Thompson, J. G. Proakis, and J. R. Zeidler. “Constant envelope binary OFDM phase modulation”. In Proceedings of the 23rd Military Communication Conference. Baltimore, MD, USA, 2003

S. C. Thompson, J. G. Proakis, J. R. Zeidler, “The effectiveness of signal clipping for PAPR and total degradation reduction in OFDM systems, ” IEEE GLOBECOM, Vol.5, pp.2807-2811, 28Nov-2Dec. 2005.

Z. Wang, Xiaoli Ma, and G. B. Giannakis. “OFDM or Single-Carrier Block Transmissions?” IEEE Transaction on Communications, 25(3):36-44, 2004

[4] Tsai, G. Zhang, J. L. Pan, “ Orthogonal frequency division multiplexing with phase modulation and constant envelope design, ” IEEE MILCOM, Vol.4, pp.2658-2664, 17-20 Oct. 2005.

[5] S. C. Thompson, J. G. Proakis, J. R. Zeidler, “Noncoherent Reception of Constant Envelope OFDM in Flat Fading Channels, ” IEEE 16th International Symposium on PIMRC, 2005.

[7] V. Erceg, K.V.S. Hari, M.S. Smith, D.S. Baum et al, “Channel Models for Fixed Wireless Applications”, IEEE 802.16.3 Task Group Contributions, Feb2003.

[8] IEEE 802.162004,” IEEE Standard for Local and Metropolitan Area Networks Part16: Air Interface for Fixed Broadband Wireless Access Systems”,1October,2004

MANUSCRIPT AUTHORS

Mr. Alimohammad Montazeri

- Iran

amm_montazeri@yahoo.com

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