| 講演抄録/キーワード |
| 講演名 |
2016-03-02 13:40
Joint Interference Alignment Transceiver Filter Design and Power Allocation for Downlink Multi-User MIMO Interference Channels ○Fereidoun H. Panahi・Tomoaki Ohtsuki(Keio Univ.)・Wenjie Jiang・Yasushi Takatori・Kazuhiro Uehara(NTT) RCS2015-352 |
| 抄録 |
(和) |
We propose centralized iterative algorithms that jointly determine the optimal transmit and receive filters as well as the optimal power allocation 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 users and a central unit (CU), we design a feedback topology where a CU collects local CSIs from all users, computes all transmit and receive filters and sends them to corresponding user-base station (BS) pairs. At the CU, we propose iterative algorithms utilizing alternating optimization strategy to design the filters. In most of the studies on the MIMO IC, choice of equal transmit powers for all user-BS pairs ignores the essential need to search for the optimal power allocation policy; they do not take the full advantage of the system?s total power. How to allocate power among all the user-BS pairs in the network based on the sum-rate maximization strategy is the key to this work. |
| (英) |
We propose centralized iterative algorithms that jointly determine the optimal transmit and receive filters as well as the optimal power allocation 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 users and a central unit (CU), we design a feedback topology where a CU collects local CSIs from all users, computes all transmit and receive filters and sends them to corresponding user-base station (BS) pairs. At the CU, we propose iterative algorithms utilizing alternating optimization strategy to design the filters. In most of the studies on the MIMO IC, choice of equal transmit powers for all user-BS pairs ignores the essential need to search for the optimal power allocation policy; they do not take the full advantage of the system?s total power. How to allocate power among all the user-BS pairs in the network based on the sum-rate maximization strategy is the key to this work. |
| キーワード |
(和) |
Interference alignment (IA) / Power allocation / Sum-rate maximization / / / / / |
| (英) |
Interference alignment (IA) / Power allocation / Sum-rate maximization / / / / / |
| 文献情報 |
信学技報, vol. 115, no. 472, RCS2015-352, pp. 115-120, 2016年3月. |
| 資料番号 |
RCS2015-352 |
| 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 |
RCS2015-352 |