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Semi-blind amplify-and-forward in two-way relaying networks

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Abstract

This paper addresses the analysis of a two-way semi-blind amplify-and-forward (AF) relay network, in which the relay node requires partial instantaneous channel state information (CSI) to amplify the received signals. First, we derive the expression of end-to-end signal-to-noise ratio in dual-hop transmissions over independent and not necessarily identically distributed Rayleigh fading channels. Based on the opportunistic AF selection relaying, we define bounds of some metrics such as average sum-rate and outage probability. Furthermore, we provide exact and approximate expressions for the average symbol error rate. The obtained results show that the performance of the proposed system decreases slightly while the processing complexity is reduced significantly compared to those of CSI-assisted AF relay schemes. In order to prove the exactness of the proposed analysis, a selection of numerical results is provided.

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Authors and Affiliations

  1. SYSCOM LAB, ENIT, El Manar University, Tunis, Tunisia

    Wided Hadj Alouane, Noureddine Hamdi & Soumaya Meherzi

Authors
  1. Wided Hadj Alouane
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  2. Noureddine Hamdi
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  3. Soumaya Meherzi
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Correspondence to Wided Hadj Alouane.

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Alouane, W.H., Hamdi, N. & Meherzi, S. Semi-blind amplify-and-forward in two-way relaying networks. Ann. Telecommun. 69, 497–508 (2014). https://doi.org/10.1007/s12243-013-0390-7

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  • DOI: https://doi.org/10.1007/s12243-013-0390-7

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