Two-way relaying based two-hop two-user MIMO system

Jin Hee Lee, Hyun Ho Lee, Young Chai Ko, Seyeong Choi

Research output: Contribution to conferencePaper

Abstract

Two-way relaying is the one of the solutions to mitigate the loss in spectral efficiency due to the half-duplex transmission in the multi-hop communication. In this paper we propose a simple two-way relaying scheme for the two-hop two-user multiple input multiple output (MIMO) system. In this system, a base station and a relay station (RS), both equipped with two antennas, form a point-to-point MIMO channel while RS and two single-antenna mobile users form a point-to-multipoint multiuser MIMO channel. Based on the proposed scheme, we also propose optimal power allocation algorithm at RS. Through the numerical examples, we show that our proposed scheme achieves significant sum rate gain compared to the one-way relaying scheme and its performance gain increases as the distance between RS and both users becomes closer.

Original languageEnglish
Pages136-140
Number of pages5
DOIs
Publication statusPublished - 2012
Event18th Asia-Pacific Conference on Communications: "Green and Smart Communications for IT Innovation", APCC 2012 - Jeju Island, Korea, Republic of
Duration: 2012 Oct 152012 Oct 17

Other

Other18th Asia-Pacific Conference on Communications: "Green and Smart Communications for IT Innovation", APCC 2012
CountryKorea, Republic of
CityJeju Island
Period12/10/1512/10/17

ASJC Scopus subject areas

  • Computer Networks and Communications

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    Lee, J. H., Lee, H. H., Ko, Y. C., & Choi, S. (2012). Two-way relaying based two-hop two-user MIMO system. 136-140. Paper presented at 18th Asia-Pacific Conference on Communications: "Green and Smart Communications for IT Innovation", APCC 2012, Jeju Island, Korea, Republic of. https://doi.org/10.1109/APCC.2012.6388117