The week's pick
Reseach Article
Power Envelope Variation Mitigation of LTE System using Constellation-Shaping Approach
| International Journal of Computer Applications |
| Foundation of Computer Science (FCS), NY, USA |
| Volume 164 - Number 3 |
| Year of Publication: 2017 |
| Authors: Joolan Nazar Alwan, Zahraa Ali Jawad |
10.5120/ijca2017913599
|
Joolan Nazar Alwan, Zahraa Ali Jawad . Power Envelope Variation Mitigation of LTE System using Constellation-Shaping Approach. International Journal of Computer Applications. 164, 3 ( Apr 2017), 18-22. DOI=10.5120/ijca2017913599
Abstract
Peak to average power ratio minimization techniques in orthogonal-frequency-division-multiplexing (OFDM) are hot researching topics since more than two decades. In this work, a novel approach without side information has been proposed, which is based on the constellation re-mapping to randomize the order of data as much as possible, such that the correlation between data vanished. The suggested method will exchange the constellation points with other constellation points, which leads to reformatting the constellation mapping, where by which the new OFDM symbol will be created with lower power envelope variation. In contrast with other methods which addressed in the literature, there will be no restrictions on the mapping family or even the alphabet order. Furthermore, the performance of the bit error rate (BER) has not been affected. Moreover, the problem of the computational complexity has not been affected, where the number of mathematical operations has an ignorable effect.
References
- Tao, J. and W. Yiyan, "An Overview: Peak-to-Average Power Ratio Reduction Techniques for OFDM Signals", IEEE Transactions on Broadcasting, 2008. 54(2): p. 257-268.
- Bhat, P., et al., "LTE-advanced: an operator perspective", IEEE Communications Magazine, 2012. 50(2): p. 104-114.
- Ahmadi, S., "An overview of next-generation mobile WiMAX technology", IEEE Communications Magazine, 2009. 47(6): p. 84-98.
- Mestdagh, D.J.G., P.M.P. Spruyt, and B. Biran, "Effect of amplitude clipping in DMT-ADSL transceivers", Electronics Letters, 1993. 29(15): p. 1354-1355.
- Jung-Chieh, C., et al., "A Suboptimal Tone Reservation Algorithm Based on Cross-Entropy Method for PAPR Reduction in OFDM Systems", IEEE Transactions on Broadcasting, 2011. 57(3): p. 752-756.
- Tellado, J., 2000. Multicarrier Modulation With Low PAR: Applications to DSL and Wireless. Kluwer Academic Publishers.
- Krongold, B.S. and D.L. Jones, "PAR reduction in OFDM via active constellation extension. IEEE Transactions on Broadcasting, 2003. 49(3): p. 258-268.
- Bauml, R.W., R.F.H. Fischer, and J.B. Huber, "Reducing the peak-to-average power ratio of multicarrier modulation by selected mapping", Electronics Letters, 1996. 32(22): p. 2056-2057.
- Chakrapani, A. and V. Palanisamy, "A survey on CF method, PTS approach, companding technique and time domain methods for PAPR reduction in OFDM systems", European Journal of Scientific Research, 2012. 75(4): p. 624-642.
- Muller, S.H. and J.B. Huber, "OFDM with reduced peak-to-average power ratio by optimum combination of partial transmit sequences", Electronics Letters, 1997. 33(5): p. 368-369.
- Yang, Z. and J. Tao, "A Novel Multi-Points Square Mapping Combined With PTS to Reduce PAPR of OFDM Signals Without Side Information", IEEE Transactions on Broadcasting, 2009. 55(4): p. 831-835.
- Cai, L., et al., "A Novel Constellation Reshaping Method for PAPR Reduction of OFDM Signals", IEEE Transactions on Signal Processing, 2011. 59(6): p. 2710-2719.
- Park, S.-E., et al., "Tone Reservation method for PAPR Reduction scheme", IEEE 802.16e-03/60, 2003.
- Taher, M., et al., "Reducing the PAPR of OFDM Systems by Random Variable Transformation", ETRI Journal, 2013. 35(4): p. 714-717.
- Dalakas, V., A.A. Rontogiannis, and P.T. Mathiopoulos, "Time domain constellation shaping technique for peak-to-average power ratio reduction", IET Communications, 2009. 3(7): p. 1144-1152.
- Proakis, J.G. and M. Salehi, 2008. Digital Communications, 5th Edition. McGraw-Hill Science/Engineering/Math. 1150
- Sardar, S., A.H.M.T. Ahmed, and R. Achar. 2015. A new approach using RCMN algorithm for PAPR optimization in LTE SC-FDMA. In 2015 International Conference on Circuit, Power and Computing Technologies (ICCPCT),. 2015.
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