| 講演抄録/キーワード |
| 講演名 |
2016-03-02 13:15
Interference Alignment for Multi-User MIMO Interference Channels Based on Estimated Uplink Channels ○Fereidoun H. Panahi・Tomoaki Ohtsuki(Keio Univ.)・Wenjie Jiang・Yasushi Takatori・Kazuhiro Uehara(NTT) RCS2015-351 |
| 抄録 |
(和) |
We propose centralized iterative algorithms that jointly determine the optimal transmit and receive filters for a K-user multiple-input multiple-output (MIMO) interference channel (IC). The optimality criterion is based on the achievable sum-rate and the average per user multiplexing gain in the MIMO IC. By allowing channel state information (CSI) exchanged between base stations (BSs) and a central unit (CU), we use a feedback topology where a CU collects local CSIs from all BSs, computes all transmit and receive filters and sends them to corresponding user-BS pairs. Note that the local CSIs at BSs are obtained from the estimation of the channel states during the so-called uplink-training phase. At the CU, we propose iterative algorithms utilizing alternating optimization strategy to design the transmit and receive filters. |
| (英) |
We propose centralized iterative algorithms that jointly determine the optimal transmit and receive filters for a K-user multiple-input multiple-output (MIMO) interference channel (IC). The optimality criterion is based on the achievable sum-rate and the average per user multiplexing gain in the MIMO IC. By allowing channel state information (CSI) exchanged between base stations (BSs) and a central unit (CU), we use a feedback topology where a CU collects local CSIs from all BSs, computes all transmit and receive filters and sends them to corresponding user-BS pairs. Note that the local CSIs at BSs are obtained from the estimation of the channel states during the so-called uplink-training phase. At the CU, we propose iterative algorithms utilizing alternating optimization strategy to design the transmit and receive filters. |
| キーワード |
(和) |
Interference alignment (IA) / Channel state information (CSI) / Sum-rate maximization / / / / / |
| (英) |
Interference alignment (IA) / Channel state information (CSI) / Sum-rate maximization / / / / / |
| 文献情報 |
信学技報, vol. 115, no. 472, RCS2015-351, pp. 109-114, 2016年3月. |
| 資料番号 |
RCS2015-351 |
| 発行日 |
2016-02-24 (RCS) |
| ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
著作権に ついて |
技術研究報告に掲載された論文の著作権は電子情報通信学会に帰属します.(許諾番号:10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
| PDFダウンロード |
RCS2015-351 |