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IEICE TRANSACTIONS on Communications

On the Achievable Diversity Multiplexing Tradeoff for the Optimal Time Allocation in the Two-Way Channel

Ao ZHAN, Chen HE, Ling-ge JIANG

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Summary :

In a two-way half-duplex system where source nodes are equipped with multiple antennas and a relay with a single antenna, we study the diversity multiplexing tradeoff (DMT) achieved by orthogonal decode-and-forward (ODF), orthogonal amplify-and-forward (OAF), non-orthogonal decode-and-forward (NDF) and non-orthogonal amplify-and-forward (NAF), respectively. Their closed-form DMT are derived with given transmission time of each terminal, and optimized by allocating the transmission time. From these analyses, NDF achieves the best performance in terms of DMT in low spectral efficiency scenarios, while NAF outperforms other protocols in high spectral efficiency scenarios.

Publication
IEICE TRANSACTIONS on Communications Vol.E94-B No.9 pp.2624-2628
Publication Date
2011/09/01
Publicized
Online ISSN
1745-1345
DOI
10.1587/transcom.E94.B.2624
Type of Manuscript
LETTER
Category
Fundamental Theories for Communications

Authors

Keyword

DMT,  ODF,  OAF,  NDF,  NAF,  network coding