Outage-optimal allocation of relay power for analog network coding with three transmission phases

Jae Cheol Park; Iickho Song; Yun Hee Kim

doi:10.1109/LCOMM.2012.041112.120094

Outage-optimal allocation of relay power for analog network coding with three transmission phases

Jae Cheol Park
, Iickho Song
, Yun Hee Kim

Research output: Contribution to journal › Article › peer-review

21 Citations (Scopus)

Abstract

We consider a two-way relaying (TWR) system, where two user nodes communicate each other via a relay node adopting a three transmission phase (3P) analog network coding (ANC). In the 3P ANC, the relay node broadcasts a linear combination of the signals received from the two users in different phases. For the proposed scheme, we derive the outage optimal relay power allocation (RPA). When a direct link (DL) is available, we also propose a suboptimal RPA to avoid the requirement of feedback of the DL quality. Simulation results show that the 3P ANC with the suboptimal PRA, at a negligible loss compared to that with the optimal RPA, outperforms the other conventional schemes when a DL is available.

Original language	English
Article number	6188497
Pages (from-to)	838-841
Number of pages	4
Journal	IEEE Communications Letters
Volume	16
Issue number	6
DOIs	https://doi.org/10.1109/LCOMM.2012.041112.120094
Publication status	Published - Jun 2012

Bibliographical note

Funding Information:
Manuscript received January 12, 2012. The associate editor coordinating the review of this letter and approving it for publication was D. Michalopoulos. This research was supported by the National Research Foundation of Korea, with funding from the Ministry of Education, Science, and Technology, under Grants 2011-0016462 and 2011-0004229, for which the authors would like to express their thanks. J. C. Park is with the Electronics and Telecommunications Research Institute, Daejeon, Korea (e-mail: [email protected]). I. Song is with the Department of Electrical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Korea (e-mail: [email protected]). Y. H. Kim is with the Department of Electronics and Radio Engineering, Kyung Hee University, Yongin, Korea (e-mail: [email protected]). Digital Object Identifier 10.1109/LCOMM.2012.041112.120094

Keywords

Two-way relaying
analog network coding
outage probability
power allocation
three phase protocol

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10.1109/LCOMM.2012.041112.120094

Cite this

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abstract = "We consider a two-way relaying (TWR) system, where two user nodes communicate each other via a relay node adopting a three transmission phase (3P) analog network coding (ANC). In the 3P ANC, the relay node broadcasts a linear combination of the signals received from the two users in different phases. For the proposed scheme, we derive the outage optimal relay power allocation (RPA). When a direct link (DL) is available, we also propose a suboptimal RPA to avoid the requirement of feedback of the DL quality. Simulation results show that the 3P ANC with the suboptimal PRA, at a negligible loss compared to that with the optimal RPA, outperforms the other conventional schemes when a DL is available.",

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N2 - We consider a two-way relaying (TWR) system, where two user nodes communicate each other via a relay node adopting a three transmission phase (3P) analog network coding (ANC). In the 3P ANC, the relay node broadcasts a linear combination of the signals received from the two users in different phases. For the proposed scheme, we derive the outage optimal relay power allocation (RPA). When a direct link (DL) is available, we also propose a suboptimal RPA to avoid the requirement of feedback of the DL quality. Simulation results show that the 3P ANC with the suboptimal PRA, at a negligible loss compared to that with the optimal RPA, outperforms the other conventional schemes when a DL is available.

AB - We consider a two-way relaying (TWR) system, where two user nodes communicate each other via a relay node adopting a three transmission phase (3P) analog network coding (ANC). In the 3P ANC, the relay node broadcasts a linear combination of the signals received from the two users in different phases. For the proposed scheme, we derive the outage optimal relay power allocation (RPA). When a direct link (DL) is available, we also propose a suboptimal RPA to avoid the requirement of feedback of the DL quality. Simulation results show that the 3P ANC with the suboptimal PRA, at a negligible loss compared to that with the optimal RPA, outperforms the other conventional schemes when a DL is available.

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Outage-optimal allocation of relay power for analog network coding with three transmission phases

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Bibliographical note

Keywords

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