Single-carrier uplink cooperative DF relay using instantaneous CSI-based adaptive modulation

Kazuhiro Kimura, Tatsunori Obara, Fumiyuki Adachi

研究成果: Paper査読

抄録

An introduction of the adaptive modulation improves the throughput of a 2-time slot cooperative relay. The throughput depends on conditions of mobile terminal (MT)-base station (BS) link, MT-relay station (RS) link, and RS-BS link. However, the cooperative relay is effective when the MT-BS direct link quality is worse than the others. Therefore, the best modulation combination can be chosen using instantaneous CSIs of MT-RS link and RS-BS link In this paper, by neglecting the MT-BS direct link contribution, we introduce an adaptive modulation using instantaneous channel state information (CSI) of MT-RS link and RS-BS link. We evaluate, by computer simulation, the throughput performance of single-carrier (SC) 2-time slot cooperative decode-and-forward (DF) relay using adaptive modulation. It is shown that the introduction of adaptive modulation can reduce by about 1.8 dB the required transmit power for achieving a 1%-outage throughput of 1.4 bps/Hz compared to the conventional method.

本文言語English
ページ146-151
ページ数6
DOI
出版ステータスPublished - 2012
外部発表はい
イベント18th Asia-Pacific Conference on Communications: "Green and Smart Communications for IT Innovation", APCC 2012 - Jeju Island, Korea, Republic of
継続期間: 2012 10 152012 10 17

Other

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

ASJC Scopus subject areas

  • コンピュータ ネットワークおよび通信

フィンガープリント

「Single-carrier uplink cooperative DF relay using instantaneous CSI-based adaptive modulation」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル