Utkovski, Zoran and Eftimov, Tome (2013) Non-coherent two-way relaying with amplify-and-forward. In: 7-th COST IC 1004 Scientific Meeting, 28-31 May 2013, Ilmenau, Germany.
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Abstract
We study the two-user MIMO block fading two-way relay channel in
the non-coherent setting, where neither the terminals nor the
relay have transmit or receive knowledge of the channel
realizations. We present a lower bound on the achievable sum-rate
with amplify-and-forward (AF) at the relay node. As a byproduct we
present an achievable pre-log region of the AF scheme, defined as
the limiting ratio of the rate region to the logarithm of the
signal-to-noise ratio (SNR) as the SNR tends to infinity.
Additionally, we present a comparison a with
time-division-multiple-access (TDMA) scheme, both in the coherent
and non-coherent setup. The analysis is supported by a geometric
interpretation, based on the paradigm of subspace-based
communication.
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Subjects: | Engineering and Technology > Electrical engineering, electronic engineering, information engineering |
| Divisions: | Faculty of Computer Science |
| Depositing User: | Zoran Utkovski |
| Date Deposited: | 19 Mar 2014 12:03 |
| Last Modified: | 19 Mar 2014 12:03 |
| URI: | https://eprints.ugd.edu.mk/id/eprint/9474 |
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