Source Power Allocation on End-Node Zero-Forcing Beamforming in Two-Hop Relay Channel 


Vol. 42,  No. 8, pp. 1521-1527, Aug.  2017
10.7840/kics.2017.42.8.1521


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  Abstract

Relay technology greatly improves spectral efficiency and link reliability. In this paper, a multi-relay system with zero-forcing beamforming at source and destination is considered. The relays decode parts of the signals and deliver them to the destination. In this partial decode-forward relay system, I propose an optimal source power allocation algorithm that maximizes overall throughput and compare it with a water-filling algorithm that considers only the source-relay channel. Both analytical and numerical results show the significant improvement.

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  Cite this article

[IEEE Style]

X. Jin, "Source Power Allocation on End-Node Zero-Forcing Beamforming in Two-Hop Relay Channel," The Journal of Korean Institute of Communications and Information Sciences, vol. 42, no. 8, pp. 1521-1527, 2017. DOI: 10.7840/kics.2017.42.8.1521.

[ACM Style]

Xianglan Jin. 2017. Source Power Allocation on End-Node Zero-Forcing Beamforming in Two-Hop Relay Channel. The Journal of Korean Institute of Communications and Information Sciences, 42, 8, (2017), 1521-1527. DOI: 10.7840/kics.2017.42.8.1521.

[KICS Style]

Xianglan Jin, "Source Power Allocation on End-Node Zero-Forcing Beamforming in Two-Hop Relay Channel," The Journal of Korean Institute of Communications and Information Sciences, vol. 42, no. 8, pp. 1521-1527, 8. 2017. (https://doi.org/10.7840/kics.2017.42.8.1521)

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pISSN : 1226 - 4717
eISSN : 2287 - 3880