preprint · arXiv (Cornell University) · 2014

Differential Distributed Space-Time Coding with Imperfect Synchronization

Avendi, M. R., Poorkasmaei, Sina, Jafarkhani, Hamid

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Abstract

Differential distributed space-time coding (D-DSTC) has been considered to improve both diversity and data-rate in cooperative communications in the absence of channel information. However, conventionally, it is assumed that relays are perfectly synchronized in the symbol level. In practice, this assumption is easily violated due to the distributed nature of the relay networks. This paper proposes a new differential encoding and decoding process for D-DSTC systems with two relays. The proposed method is robust against synchronization errors and does not require any channel information at the destination. Moreover, the maximum possible diversity and symbol-by-symbol decoding are attained. Simulation results are provided to show the performance of the proposed method for various synchronization errors and the fact that our algorithm is not sensitive to synchronization error.

Cite this paper

APA 7

Avendi, M. R., Poorkasmaei, S., & Jafarkhani, H. (2014). Differential Distributed Space-Time Coding with Imperfect Synchronization. arXiv (Cornell University). https://doi.org/10.48550/arxiv.1407.6751

MLA 9

Avendi, M. R., et al. “Differential Distributed Space-Time Coding with Imperfect Synchronization.” arXiv (Cornell University), 2014, https://doi.org/10.48550/arxiv.1407.6751.

Chicago

Avendi, M. R., Sina Poorkasmaei, and Hamid Jafarkhani. 2014. “Differential Distributed Space-Time Coding with Imperfect Synchronization.” arXiv (Cornell University). https://doi.org/10.48550/arxiv.1407.6751.

Harvard

Avendi, M.R., Poorkasmaei, S. and Jafarkhani, H. (2014) ‘Differential Distributed Space-Time Coding with Imperfect Synchronization’, arXiv (Cornell University). Available at: https://doi.org/10.48550/arxiv.1407.6751.

BibTeX

@misc{avendi2014differential,
  title = {{Differential Distributed Space-Time Coding with Imperfect Synchronization}},
  author = {Avendi, M. R. and Poorkasmaei, Sina and Jafarkhani, Hamid},
  journal = {arXiv (Cornell University)},
  year = {2014},
  doi = {10.48550/arxiv.1407.6751}
}

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