Hybrid Mapping Scheme for Recent Orthogonal FDMA Schemes
- 1 Department of Electrical, Faculty of Engineering and Architecture, Ibb University, Ibb, Yemen
Abstract
Single-carrier frequency-division multiple access (SC-FDMA) and orthogonal frequency division multiple access (OFDMA) systems are new orthogonal multiple access systems. They have been adopted in the 3GPP long term evolution (3GPP-LTE). In these systems, there are only two types of subcarrier mapping schemes which are the interleaved and the localized. So, introducing a new subcarrier mapping scheme is an important issue, which is the main objective of this paper. In this paper, a hybrid subcarrier mapping scheme is proposed and examined for the SC-FDMA system. Monte Carlo simulations are performed to compare the performance of the proposed scheme with that of the interleaved and the localized schemes. It is shown that a hybrid scheme provides better performance than that of the localized and the same performance as that of the interleaved scheme and increased robustness to carrier frequency offset (CFO) at the expense of increased envelope fluctuations.
- Air Interface for Fixed and Mobile Broadband Wireless Access Systems Amendment for Physical and Medium Access Control Layers for Combined Fixed and Mobile Operation in Licensed Bands, IEEE Std. 802.16e, 2006.
- H. G. Myung, J. Lim and D. J. Goodman, “Single Carrier FDMA for Uplink Wireless Transmission,” IEEE Vehicular Technology Magazine, Vol. 1, No. 3, 2006, pp. 30-38. doi:10.1109/MVT.2006.307304
- F. S. Al-kamali, M. I. Dessouky, B. M. Sallam, F. E. Abd El-Samie and F. Shawki, “A New Single Carrier FDMA System Based on the Discrete Cosine Transform,” Proceedings of the ICCES’9 Conference, Cairo, 14-16 December 2009, pp. 555-560.
- H. G. Myung and D. J. Goodman, “Single Carrier FDMA: A New Air Interface for Long Term Evaluation,” John Wiley & Sons, Ltd., New York, 2008. doi:10.1002/9780470758717
- F. S. Al-kamali, M. I. Dessouky, B. M. Sallam, F. Shawki, W. Al-Hanafy and F. E. Abd El-Samie, “Joint Low-Complexity Equalization and Carrier Frequency Offsets Compensation Scheme for MIMO SC-FDMA Systems,” IEEE Transactions on Wireless Communications, Vol. 11, No. 3, 2012, pp. 869-873.
- F. S. Al-kamali, M. I. Dessouky, B. M. Sallam, F. E. Abd El-Samie and F. Shawki, “Uplink SC-FDMA System with Joint Equalization and Carrier Frequency Offsets Compensation,” IET Communications, Vol. 5, No. 4, 2011, pp. 425-433. doi:10.1049/iet-com.2010.0135
- 3rd Generation Partnership Project, 3GPP TS 25.101- Technical Specification Group Radio Access Network; User Equipment (UE) Radio Transmission and Reception (FDD) (Release 7), September 2007, Section B.2.2.
- J. Choi, C. Lee, H. W. Jung and Y. H. Lee, “Carrier Frequency Offset Compensation for Uplink of OFDM-FDMA Systems,” IEEE Communications Letters, Vol. 4, No. 12, 2000, pp. 414-416. doi:10.1109/4234.898725