PERFORMANCE OF ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING WITH SIGNAL SPACE DIVERSITY VIA SUBCARRIER COORDINATE INTERLEAVING OVER NAKAGAMI-M AND RICIAN FADING CHANNELS

Abstract

In this work, orthogonal frequency division multiplexing technique is combined with signal space diversity and error probability performance of the system is inspected for binary phase shift keying modulation over slow frequency-selective Nakagami-m and Rician fading channels. First, appropriate subcarrier coordinate interleaving techniques are obtained based on the number of subcarriers, the number of resolvable multipaths, and the fading parameters. It is shown that appropriate subcarrier coordinate interleaving techniques under some of the investigated scenarios are the same as the ones under the Rayleigh fading scenario. Subsequently, the bit error rate of the studied system is compared with the bit error rate of the original system. Further, it is demonstrated that the considered system provides significant performance gain beyond the original orthogonal frequency division multiplexing technique under different scenarios.

Keywords

• Orthogonal Frequency Division Multiplexing
• Signal Space Diversity
• Subcarrier Coordinate Interleaving
• Nakagami-M Fading Channel
• Rician Fading Channel

PERFORMANCE OF ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING WITH SIGNAL SPACE DIVERSITY VIA SUBCARRIER COORDINATE INTERLEAVING OVER NAKAGAMI-M AND RICIAN FADING CHANNELS

Öz

In this work, orthogonal frequency division multiplexing technique is combined with signal space diversity and error probability performance of the system is inspected for binary phase shift keying modulation over slow frequency-selective Nakagami-m and Rician fading channels. First, appropriate subcarrier coordinate interleaving techniques are obtained based on the number of subcarriers, the number of resolvable multipaths, and the fading parameters. It is shown that appropriate subcarrier coordinate interleaving techniques under some of the investigated scenarios are the same as the ones under the Rayleigh fading scenario. Subsequently, the bit error rate of the studied system is compared with the bit error rate of the original system. Further, it is demonstrated that the considered system provides significant performance gain beyond the original orthogonal frequency division multiplexing technique under different scenarios.

Anahtar Kelimeler

• Orthogonal Frequency Division Multiplexing
• Signal Space Diversity
• Subcarrier Coordinate Interleaving
• Nakagami-M Fading Channel
• Rician Fading Channel

Kaynakça

1. [1] Hwang, T., Yang, C., Wu, G., Li, S., and Li, G.Y., (2009). OFDM and its Wireless Applications: A Survey, IEEE Trans. Veh. Technol., Vol:58, No:4, pp:1673-1694.
2. [2] Tse, D. and Viswanath, P., (2005). Fundamentals of Wireless Communications, Cambridge University Press.
3. [3] Boulle, K. and Belfiore, J.C., (1992). Modulation Scheme Designed for Rayleigh Fading Channel, in Proc. 26th Annual Conf. Inf. Sciences Sys., Princeton, US.
4. [4] Taricco, G. and Viterbo, E., (1996). Performance of Component Interleaved Signal Sets for Fading Channels, Electron. Lett., Vol:32, No:13, pp:1170-1172.
5. [5] Boutros, J. and Viterbo, E., (1998). Signal Space Diversity: a Power- and Bandwidth-Efficient Diversity Technique for the Rayleigh Fading Channel, IEEE Trans. Inf. Theory, Vol:44, No:4, pp:1453-1467.
6. [6] Özyurt, S., Kucur, O., and Altunbaş, İ., (2007). Error Performance of Rotated Phase Shift Keying Modulation over Fading Channels, J. of Wireless Personal Commun., Vol:43, No:4, pp:1453-1463.
7. [7] Yılmaz, A. and Kucur, O., (2011). Performance of Rotated PSK Modulation in Nakagami-m Fading Channels, J. of Digital Signal Process., Vol:21, No:2, pp:296-306.
8. [8] Slimane, S.B., (1998). An Improved PSK Scheme for Fading Channels, IEEE Trans. Veh. Technol., Vol:47, No:2, pp:703-710.

9. [9] Özyurt, S. and Kucur, O., (2018). Performance of OFDM with Signal Space Diversity Using Subcarrier Coordinate Interleaving, IEEE Trans. Veh. Technol., Accepted, Available Online.
10. [10] Guidelines for Evaluation of Radio Transmission Technologies for IMT-2000, (1997). Recommendation ITU-R M.1225.
11. [11] Rainfield, Y.Y., Hong-Yu, L., and Wei, K.T., (2008). QAM Symbol Error Rate in OFDM Systems Over Frequency-Selective Fast Ricean-Fading Channels, IEEE Trans. Veh. Technol., Vol:57, No:2, pp:1322-1325.
12. [12] Abramowitz, M. and Stegun, I.A., (1972). Handbook of Mathematical Functions with Formulas, Graphs, and Mathematical Tables, Dover Press.