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A Cyclic Shift Relaying Scheme for Asynchronous Two-way Relay Networks

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Abstract

Perfect time synchronization among multiple relay nodes is quite difficult to realize in distributed relay networks. In this paper, we proposed a cyclic prefix (CP) assisted cyclic shift relaying (CFR) scheme for asynchronous two-way amplify-and-forward (AF) relay networks over flat fading channels. In the proposed scheme, a CP is inserted at the two source nodes to combat the asynchronous delays. Each relay amplifies the received mixed asynchronous signals after CP removal, and a cyclic delay is introduced to further improve the system performance. With the CP and the cyclic delay, the multiple flat fading relay channels are transformed into a multipath fading channel. As a result, low complexity frequency domain equalizers, such as zero-forcing and minimum mean square error (MMSE) equalizer, can be used to recover the transmit signal. Furthermore, the performance of the proposed CFR scheme with MMSE equalizer is analyzed and closed-form expression for the lower bound of uncoded bit error rate (BER) performance is derived. Based upon this lower bound, we also investigate the power allocation among the sources and the relays to improve the system performance. Finally, extensive numerical results are provided to show the BER and frame error rate performance of the proposed CFR scheme.

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References

  1. Nguyen, H. X., Nguyen, H. H., & Le-Ngoc, T. (2011). Diversity analysis of relay selection schemes for two-way wireless relay networks. Wireless Personal Communications, 59(2), 173–189.

    Article  MathSciNet  Google Scholar 

  2. Kyunbyoung, K., & Choongchae, W. (2011). More accurate ASER bound for opportunistic amplify-and-forward relay systems. Wireless Personal Communications. doi:10.1007/s11277-011-0471-8.

  3. Jing, Y. (2009). A relay selection scheme for two-way amplify-and-forward relay networks. In Proceedings of WCSP, 2009, pp. 1–5.

  4. Hwang K. S., Ko Y. C., & Alouini M. -S. (2009). Performance bounds for two-way amplify-and-forward relaying based on relay path selection. In Proceedings of Proceedings of IEEE VTC, pp. 1–5.

  5. Hui, H., Zhu, S., & Li, G. (2009). A novel power allocation and relay selection scheme in AF cooperative networks with mean channel gain information. IEICE Transactions on Communications, E92–B(1), 342–345.

    Article  Google Scholar 

  6. Seyfi, M., Muhaidat, S., & Liang, J. (2010). Amplify-and-forward selection cooperation with channel estimation error. Proceedings of GLOBECOM, 2010, pp. 1–6.

  7. Nguyen, H. X., Nguyen, H. H., & Le-ngoc, T. (2010). Optimization of linear dispersion codes for two-way wireless relay networks. IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, E93–A(3), 656–659.

    Article  Google Scholar 

  8. Tanoli, S. K., Khan, I., Rajatheva, N., & Adachi, F. (2010). Advances in relay networks: performance and capacity analysis of space-time analog network coding. EURASIP Journal on Wireless Communications and Networking. doi:10.1155/2010/232754.

  9. Wang, H., & Xia, X.-G. (2011). Asynchronous cooperative communication systems: A survey on signal designs. SCIENCE CHINA Information Sciences, 54(8), 547–1561.

    Article  MathSciNet  MATH  Google Scholar 

  10. Nahas M., Saadani A., & Hachem W. (2009). Performance of asynchronous amplify-and-forward cooperative relay networks. In Proceedings of Proceedings of GLOBECOM2009, pp. 1–6.

  11. Zhang, X., & Shin, K. G. (2010). DAC: Distributed asynchronous cooperation for wireless relay networks. In Proceedings of INFOCOM, 2010, pp. 1–9.

  12. Zhong, Z., Zhu, S., & Lv, G. (2009). Distributed space-time code for asynchronous two-way wireless relay networks under frequency-selective channels. In Proceedings of ICC ’09, pp. 1–5.

  13. Zhang, W., Wang, H., Yin, Q., & Wang, Q. (2010). Space frequency code for cooperative communications with both timing errors and carrier frequency offsets. IEICE Transactions on Communications, E93–B(12), 3505–3508.

    Article  Google Scholar 

  14. Guo, X., & Xia X. -G. (2008). Distributed linear convolutive space-time codes for asynchronous cooperative communication networks. In Proceedings of ICC2008, pp. 1–5.

  15. Wang, H.-M., Xia, X.-G., & Yin, Q.-Y. (2010). A linear analog network coding for asynchronous two-way relay networks. IEEE Transactions on Wireless Communications, 9(12), 3630–3637.

    Article  MathSciNet  Google Scholar 

  16. Ohno, S., & Teo, K. (2005). Performance of single-carrier block transmissions over multipath fading channels with MMSE equalization. IEEE GLOBECOM 2005, pp. 2129–2133.

  17. Simon, M. K., & Alouini, M. (1998). A unified approach to the performance analysis of digital communication over generalized fading channels. Proceedings of the IEEE, 86(9), 1860–1877.

    Article  Google Scholar 

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Acknowledgments

This work was supported by the Natural Science Foundation of China under Grant No.71071145, and the Natural Science Foundation of Zhejiang Province under Grant No. Y13F010057.

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Authors and Affiliations

  1. School of Electronic and Information Engineering, Zhejiang Wanli University, Ningbo, Zhejiang, 315100, China

    Zhaoxi Fang, Feng Liang, Shaozhong Zhang & Tao Peng

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  1. Zhaoxi Fang
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  2. Feng Liang
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  3. Shaozhong Zhang
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  4. Tao Peng
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Correspondence to Zhaoxi Fang.

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Fang, Z., Liang, F., Zhang, S. et al. A Cyclic Shift Relaying Scheme for Asynchronous Two-way Relay Networks. Wireless Pers Commun 71, 2863–2876 (2013). https://doi.org/10.1007/s11277-012-0975-x

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