The DOI matches its Crossref record; 18 of the 18 references it cites were found in a registry or an index.
Optimal beamforming for two-way multi-antenna relay channel with analogue network coding
Open accessAbstract
This paper studies the wireless two-way relay channel (TWRC), where two source nodes, S1 and S2, exchange information through an assisting relay node, R. It is assumed that R receives the sum signal from S1 and S2 in one timeslot, and then amplifies and forwards the received signal to both S1 and S2 in the next time-slot. By applying the principle of analogue network coding (ANC), each of S1 and S2 cancels the so-called "self-interference" in the received signal from R and then decodes the desired message. Assuming that S1 and S2 are each equipped with a single antenna and R with multi-antennas, this paper analyzes the capacity region of the ANC-based TWRC with linear processing (beamforming) at R. The capacity region contains all the achievable bidirectional rate-pairs of S1 and S2 under the given transmit power constraints at S1, S2, and R. We present the optimal relay beamforming structure as well as an efficient algorithm to compute the optimal beamforming matrix based on convex optimization techniques. Low-complexity suboptimal relay beamforming schemes are also presented, and their achievable rates are compared against the capacity with the optimal scheme.
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Hot topic: physical-layer network coding
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Embracing wireless interference: analog network coding
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An introduction to convex optimization for communications and signal processing
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Joint Physical Layer Coding and Network Coding for Bidirectional Relaying
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Semidefinite Relaxation of Quadratic Optimization Problems
Luo, Z.-Q., Ma, W.-K., So, A., Ye, Y., & Zhang, S. (2010) · IEEE Signal Processing Magazine · doi:10.1109/msp.2010.936019 · Cited by 3,715
Intelligent Reflecting Surface: A Programmable Wireless Environment for Physical Layer Security
Chen, J., Liang, Y.-C., Pei, Y., & Guo, H. (2019) · IEEE Access · doi:10.1109/access.2019.2924034 · Cited by 507
Self-citationA Survey on Multiple-Antenna Techniques for Physical Layer Security
Chen, X., Ng, D. W. K., Gerstacker, W. H., & Chen, H.-H. (2017) · IEEE Communications Surveys & Tutorials · doi:10.1109/comst.2016.2633387 · Cited by 474
Metadata
- Authors
- Zhang, R., Liang, Y.-C., Chai, C. C., & Cui, S.
- Venue
- IEEE Journal on Selected Areas in Communications
- Published
- 2009-06
- Volume
- 27
- Issue
- 5
- Pages
- 699-712
- ISSN
- 0733-8716 (ISSN-L)
- 1558-0008
- OpenAlex
- W2119523314
- Cited by
- 560
- References
- 18
- FWCI
- 98.43
- Type
- journal article
- Language
- en
- Open access
- green
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