Joint energy-efficient single relay selection and power allocation for analog network coding with three transmission phases

Basem M. Elhalawany, Maha Elsabrouty, Osamu Muta, Adel Abdelrahman, Hiroshi Furukawa

研究成果: ジャーナルへの寄稿会議記事査読

11 被引用数 (Scopus)

抄録

The multiple access broadcast (MABC) is an effective two phases transmission (2P) ANC protocol for the half-duplex (HD) communication mode. However, MABC does not make use of channel gain of the direct link (DL) no matter how strong it is. On the other hand, the time division broadcast (TDBC) is known as a three phases transmission (3P) protocol which enables transceivers to utilize DL and thus offers the possibility to achieve higher performance compared with the MABC at the expense of a reduced spectral efficiency due to the one extra transmission phase. In this paper, we investigate a joint single relay selection and power allocation schemes for energy-efficient wireless communication systems with analog network coding (ANC) for TDBC, where two-way relay channel with two end nodes and N parallel relay nodes is considered under an assumption of perfect channel-state information (CSI). Our objective is to minimize the total system transmit power consumption under quality-of-service (QoS) constraints for TDBC protocol with joint single relay selection and nodes power allocation. In addition, a zero-forcing based relay signal combining technique that combines the signals received at the 1st and 2nd transmission phases, also known as zero-forcing relay power allocation (ZF-RPA), is also investigated. Numerical simulation shows that the traditional VG-RPA is more energy-efficient than the ZF-RPA scheme for TDBC in cases with and without utilizing DL.

本文言語英語
論文番号7022964
ジャーナルIEEE Vehicular Technology Conference
2015-January
January
DOI
出版ステータス出版済み - 2014
イベント2014 79th IEEE Vehicular Technology Conference, VTC 2014-Spring - Seoul, 韓国
継続期間: 5月 18 20145月 21 2014

!!!All Science Journal Classification (ASJC) codes

  • コンピュータ サイエンスの応用
  • 電子工学および電気工学
  • 応用数学

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