Browse > Article
http://dx.doi.org/10.7840/KICS.2012.37A.1.1

Design of New Differential Space-Time Modulation Using Real Precoder  

Kim, Hong-Jung (전남대학교 전자컴퓨터공학과 광대역무선통신연구실)
Kim, Jun-Ho (전남대학교 전자컴퓨터공학과 광대역무선통신연구실)
Kim, Cheol-Sung (전남대학교 전자컴퓨터공학과 광대역무선통신연구실)
Jung, Tae-Jin (전남대학교 전자컴퓨터공학과 광대역무선통신연구실)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.37, no.1A, 2012 , pp. 1-7 More about this Journal
Abstract
The conventional Zhu's differential space-time modulation(DSTM) based on quasi-orthogonal design adopted a complex precoder in order to allow an independent joint detection of two complex symbols without any channel informations at a receiver. In this paper, by simply replacing the complex precoder used in Zhu's DSTM with a real precoder, a new DSTM is presented for four transmit antennas. The real precoder enables the receiver to decode two real symbols pair separately, and thus the new DSTM has greatly reduced decoding complexity compared to the Zhu's DSTM. By computer simulation results, the proposed scheme is shown to exhibit almost identical or improved error performance compared to the existing DSTMs.
Keywords
DSTM; STBC; Diversity; MIMO; Fading;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Y. Zhu and H. Jafarkhani, "Differential Modulation Based on Quasi-Orthogonal Codes," IEEE Trans. Wireless Commun., vol. 4, no.6, pp. 3018-3030, Nov. 2005.   DOI   ScienceOn
2 채창현, 김준호, 김호준, 정태진, "4개의 송신안테나를 사용하는 차등 시공간 변조에 대한 새로운 준직교 차등 복조기법," Telecom. Review, vol 20, no. 2, pp. 319-329, Apr. 2010.
3 Y. Chang, Y. Hua, B. M. Sadler, "A New Design of Differential Space-Time Block Code Allowing Symbol-Wise Decoding", IEEE Trans. Wireless Commun., Vol. 6, no. 9, pp. 3197-3201, Sep 2007.   DOI   ScienceOn
4 C. Yuen, Y. L. Guan, T. T. Tjhung "Single-Symbol Decodable Differential Space-Time Modulation Based on QO-STBC," IEEE Trans. Wireless Comms., Vol. 5, pp. 3329-3335, Dec. 2006.   DOI   ScienceOn
5 S. Alamouti, "A Simple Transmit Diversity Technique for Wireless Communication," IEEE Journal on Selected Areasin Communications, vol. 16, no. 8, pp. 1451-1458, Oct. 1998.   DOI   ScienceOn
6 V. Tarokh, H. Jafarkhani, and A. R. Calderbank, "Space-Time Block Codes from Orthogonal Designs," IEEE Trans. Inform. Theory, vol. 45, no.5, pp. 1456-1467, July 1999.   DOI   ScienceOn
7 H. Jafarkhani, "A Quasi-Orthogonal Space-Time Block Code," IEEE Trans. Commun., vol. 49, no. 1, pp. 1-4, Jan. 2001.   DOI   ScienceOn
8 C. Chae, T. Jung and I. Hwang, "Design of New Quasi-Orthogonal STBC with Minimum Decoding Complexity for Four Transmit Antennas," IEICE Trans. Commun., vol. E91-B, NO.10, pp. 3368-3370, Oct. 2008.   DOI   ScienceOn
9 M. Tao and R. S. Cheng, "Differential Space-Time Block Codes." IEEE Global Telecommunications Conference, vol. 2, pp. 1098-1102, Nov. 2001.
10 Z. Chen, G. Zhu, D. Qu and Y. Liu, "General Differential Space-Time Modulation," in Proc. IEEE Global Telecommu. conf., Sanfrancisco, CA, vol. 1, pp. 282-286, Dec. 2003.