Browse > Article
http://dx.doi.org/10.5515/KJKIEES.2007.18.11.1254

A Mapped Mc-OFDM Cooperative Communications System to Reduce PAPR and Improve Data Reliability  

Hwang, Yun-Kyeong (School of Electrical Engineering, University of Ulsan)
Kong, Hyung-Yun (School of Electrical Engineering, University of Ulsan)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.18, no.11, 2007 , pp. 1254-1261 More about this Journal
Abstract
Mc-OFDM(Multi code-Orthogonal Frequency Division Multiplexing) modulation has been developed for high-speed data transmission over wireless channels. However, this system suffers critical problem from relatively high PAPR(Peak to Average Power Ratio). To reduce PAPR, we suggest a new technique, called Mapping using (N+1)PSK and demonstrate the performance of mapped Mc-OFDM system. On the other side, in OFDM system, each sub-carrier experiences different fading, thus some sub-carriers may be completely lost because of deep fade. To solve a above mention problem, we propose cooperative communications that improve the reliability of sub-carriers through spatial diversity.
Keywords
Mapping; Mc-OFDM; Cooperative Communication; PAPR; Spatial Diversity;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Richard van Nee, Ramjee Prasad, OFDM for Wireless Multimedia Communications, Artech House, 2000
2 B. M. Popovic, 'Spreading sequences for multica-rrier CDMA systems', IEEE Trans. Commun., vol. 47, Issue 6, pp. 918-926, Jun. 1999   DOI   ScienceOn
3 R. V. Nee, R. Prasad, OFDM for Wireless Multimedia Communications, Artech House, 2000
4 O. Canpolat, M. Uysal, 'Super-orthogonal space-time trellis coded cooperative diversity systems', VTC2004-Fall, vol. 4, pp. 2429-2433, Sep. 2004
5 V. Tarokh, H. Jafarkhani, and A. R. Calderbank, 'Space-time block coding for wireless communications: performance results', IEEE Trans, on Selected Areas in Commun., vol. 17, Issue 3, pp. 451-460, Mar. 1999   DOI   ScienceOn
6 Zhongding Lei, Yan Wu, Chin Keong Ho, Sumei Sun, Ping He, and Yuan Li, 'Iterative detection for Walsh-Hadamard transformed OFDM', VTC 2003-Spring, vol. 1, pp. 637-640, Apr. 2003
7 H. Hu, H. Yanikomeroglu, D. Falconer, and S. Periyalwar, 'Range extension without capacity penalty in cellular networks with digital fixed relays', IEEE Globecom, vol. 5, pp. 3053-3057, Nov. Dec. 2004
8 A. Nosratinia, T. E. Hunter, and A. Hedayat, 'Cooperative communication in wireless networks', IEEE Communications Magazine, vol. 42, Issue 10, pp. 74-80, Oct. 2004   DOI   ScienceOn
9 Z. Dlugaszewski, K. Wesolowski, 'WHT/OFDM -an improved OFDM transmission method for selective fading channels', SCVT-2000, pp. 144-149, Oct. 2000