Article

Performance of cooperative transmissions in flat fading environment with asynchronous transmitters

Authors:

Xiaohua Li,

Juite HwuAuthors Info & Claims

MILCOM'06: Proceedings of the 2006 IEEE conference on Military communications

Pages 1279 - 1285

Published: 23 October 2006 Publication History

Abstract

Channel dispersion is inevitable in asynchronous cooperative transmissions even in flat fading environment, which may greatly degrade the gain of cooperative diversity and cast doubts on their application in wireless sensor networks for energy efficiency or reliability. This paper studies the interference caused by such channel dispersion, and shows that the average SIR can be decreased to 10 dB even in noiseless transmissions. We propose two methods to mitigate the dispersion: a simple sampling time optimization method, and an over-sampling combining method. Simulations show that they can achieve average SIR near 30 dB and near 60 dB, respectively, with two cooperative transmitters.

References

[1]

S. M. Alamouti, "A simple transmitter diversity scheme for wireless communications", IEEE J. Select. Areas Commun., vol. 16, pp. 1451-1458, Oct. 1998.

Digital Library

Google Scholar

[2]

V. Tarokh, H. Jafarkhani and A. R. Calderbank, "Space-time block codes from orthogonal designs," IEEE Trans. Inform. Theory, vol. 45, no. 7, pp. 1456-1467, July 1999.

Crossref

Google Scholar

[3]

A. Sendonaris, E. Erkip and B. Aazhang, "User cooperation diversity, Part I, II," IEEE Trans. Commun., vol. 51, no. 11, pp. 1927-1948, Nov. 2003.

Crossref

Google Scholar

[4]

J. N. Laneman and G. W. Wornell, "Distributed space-time-coded protocols for exploiting cooperative diversity in wireless networks," IEEE Trans. Inform. Theory, vol. 49. no. 10, pp. 2415- 2425, Oct. 2003.

Digital Library

Google Scholar

[5]

X. Li, "Space-time coded multitransmission among distributed transmitters without perfect synchronization," IEEE Signal Process. Lett., vol. 11, no. 12, pp. 948-951, Dec. 2004.

Crossref

Google Scholar

[6]

X. Li, F. Ng, J. Hwu and M. Chen, "Channel equalization for STBC-encoded cooperative transmissions with asynchronous transmitters," in Proc. 39th Asilomar Conf. Signals, Systems Computers, Pacific Grove, CA, Oct. 2005.

Google Scholar

[7]

S. Barbarossa and G. Scutari, "Distributed spacetime coding strategies for wideband multihop networks: regenerative vs. non-regenerative relays," Proc. ICASSP 2004, Montreal, Canada, June 2004.

Google Scholar

[8]

F. Ng and X. Li, "Cooperative STBC-OFDM transmissions with imperfect synchronization in time and frequency," in Proc. 39th Asilomar Conf. Signals, Systems Computers, Pacific Grove, CA, Oct. 2005.

Google Scholar

[9]

Y. Mei, Y. Hua, A. Swami and B. Daneshrad, "Combating synchronization errors in cooperative relay," IEEE Int. Conf. Acoustics, Speech, and Signal Processing, Philadelphia, PA, Mar. 2005.

Google Scholar

[10]

S. Wei, D. Goeckel and M. Valenti, "Asynchronous cooperative diversity," Proc. Conf. Inform. Sci. Sys., Princeton University, Mar. 2004.

Google Scholar

[11]

Y. Shang and X.-G. Xia, "Shift full rank matrices and applications in space-time trellis codes for relay networks with asynchronous cooperative diversity," IEEE Trans. Inform. Theory, July 2006, to appear.

Crossref

Google Scholar

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Ahmad MDutkiewicz EHuang XBononi LLassous I(2008)Performance evaluation of MAC protocols for cooperative MIMO transmissions in sensor networksProceedings of the 5th ACM symposium on Performance evaluation of wireless ad hoc, sensor, and ubiquitous networks10.1145/1454609.1454623(54-62)Online publication date: 27-Oct-2008
https://dl.acm.org/doi/10.1145/1454609.1454623

Performance of cooperative transmissions in flat fading environment with asynchronous transmitters
1. Networks
  1. Network types

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MILCOM'06: Proceedings of the 2006 IEEE conference on Military communications

October 2006

3690 pages

ISBN:1424406188

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IEEE Press

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Published: 23 October 2006

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Ahmad MDutkiewicz EHuang XBononi LLassous I(2008)Performance evaluation of MAC protocols for cooperative MIMO transmissions in sensor networksProceedings of the 5th ACM symposium on Performance evaluation of wireless ad hoc, sensor, and ubiquitous networks10.1145/1454609.1454623(54-62)Online publication date: 27-Oct-2008
https://dl.acm.org/doi/10.1145/1454609.1454623

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Error performance of maximal-ratio combining with transmit antenna selection in flat Nakagami-m fading channels

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