Browse > Article

Soft-Decision-and-Forward Protocol for Cooperative Communication Networks with Multiple Antennas  

Yang, Jae-Dong (Samsung Electronics Co., Ltd.)
Song, Kyoung-Young (Advanced Communication Technology R&D Lab., LG Electronics Co., Ltd.)
No, Jong-Seon (Department of EECS, INMC, Seoul National University)
Shin, Dong-Joan (Department of ECE, Hanyang University)
Publication Information
Journal of Communications and Networks / v.13, no.3, 2011 , pp. 257-265 More about this Journal
Abstract
In this paper, a cooperative relaying protocol called soft-decision-and-forward (SDF) with multiple antennas in each node is introduced. SDF protocol exploits the soft decision source symbol values from the received signal at the relay node. For orthogonal transmission (OT), orthogonal codes including Alamouti code are used and for non-orthogonal transmission (NT), distributed space-time codes are designed by using a quasi-orthogonal space-time block code. The optimal maximum likelihood (ML) decoders for the proposed protocol with low decoding complexity are proposed. For OT, the ML decoders are derived as symbolwise decoders while for NT, the ML decoders are derived as pairwise decoders. It can be seen through simulations that SDF protocol outperforms AF protocol for both OT and NT.
Keywords
Amplify-and-forward (AF); cooperative communications; distributed space-time code (DSTC); maximum-likelihood (ML) decoder; soft-decision-and-forward (SDF);
Citations & Related Records

Times Cited By Web Of Science : 0  (Related Records In Web of Science)
Times Cited By SCOPUS : 0
연도 인용수 순위
  • Reference
1 K.-Y. Song, J.-S. No, and H. Chung, "Bit error rate and power allocation of soft-decision-and-forward cooperative networks," IEICE Trans. Wireless Commun., vol. E94-B, no. 1, Jan. 2011.
2 W. Su and X. Xia, "Signal constellations for quasi-orthogonal space-time block codes with full diversity," IEEE Trans. Inf. Theory, vol. 50, no. 10, pp. 2331-2347, Oct. 2004.   DOI   ScienceOn
3 T. Wang, A. Cano, G. B. Giannakis, and J. N. Laneman, "Highperformance cooperative demodulation with decode-and-forward relays," IEEE Trans. Commun., vol. 55, no. 7, pp. 1427-1438, July 2006.
4 S. Alamouti, "A simple transmit diversity technique for wireless communications," IEEE J. Sel. Areas Commun., vol. 16, no. 8, pp. 1451-1458, Aug. 1998.   DOI   ScienceOn
5 J.-D. Yang, K.-Y. Song, J.-S. No, and D.-J. Shin, "Soft-decision-andforward protocol for cooperative communication networks based on Alamouti code," in Proc. IEEE ISIT, Seoul, Korea, June 28-July 3, 2009, pp. 1016-1019.
6 O. Tirkkonen, A. Boariu, and A. Hottinen, "Minimal nonorthogonality rate 1 space-time block code for 3+ Tx antennas," in Proc. IEEE ISSSTA, Sept. 2000, pp. 429-432.
7 I.-H. Lee and D.-W. Kim, "Decouple-and-forward relaying for dual-hop Alamouti transmissions," IEEE Commun. Lett., vol. 12, no. 2, pp. 97-99, Feb. 2008.
8 X. Li, T. Luo, G. Yue, and C. Yin, "A squaring method to simplify the decoding of orthogonal space-time block codes," IEEE Trans. Commun., vol. 49, no. 10, pp. 1700-1703, Oct. 2001.   DOI   ScienceOn
9 V. Tarokh, H. Jafarkhani, and A. R. Calderbank, "Space-time block codes from orthogonal designs," IEEE Trans. Inf. Theory, vol. 45, no. 5, pp. 1456-1467, July 1999.   DOI   ScienceOn
10 X. Jin, J.-D. Yang, J.-S. No, and D.-J. Shin, "Distributed space-time coded non-orthogonal DF protocol with source antenna switching," J. Commun. Netw., vol. 12, no. 5, pp. 492-498, Oct. 2010.   DOI
11 C. Hucher, G. R. Rekaya, and J. Belfiore, "AF and DF protocols based on AIamouti ST code," in Proc. IEEE ISIT, June 2007, pp. 1526-1530.
12 J. Vazifehdan and H. Shafiee, "Cooperative diversity in space-time coded wireless networks," in Proc. ICCS, Sept. 2004, pp. 215-219.
13 T. M. Cover and A. A. El Gamal, "Capacity theorems for the relay channel," IEEE Trans. Inf. Theory, vol. IT-23, no. 5, pp. 572-584, Sept. 1979.
14 A. Nosratinia and A. Hedayat, "Cooperative communication in wireless networks," IEEE Commun. Mag., vol. 42, no. 10, pp. 74-80, Oct. 2004.   DOI   ScienceOn