| Paper Abstract and Keywords |
| Presentation |
2016-02-18 16:40
A Centralized Interference Alignment (IA) Design for Multi-User MIMO Interference Channels
Fereidoun H. Panahi, Tomoaki Ohtsuki (Keio Univ.), Wenjie Jiang, Yasushi Takatori, Kazuhiro Uehara (NTT) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
Interference alignment (IA) is a technique shown to be able to achieve a significant overall throughput in a 𝐾-user multiple-input multiple-output (MIMO) interference channel (IC). In this paper, we try to modify the conventional IA designs to achieve enhanced sum-rate performance. We jointly design transmit and receive IA filters (precoding and suppression filters) at a central unit (CU) to reduce the channel state information (CSI) feedback/sharing overhead. At the CU, in a one-way iterative strategy (left ?L? to right ?R?, see Fig. 1), the precoding filters are optimized (on side ?L?) in the direction of the gradient of the sum-rate, and the suppression filters are chosen (on side ?R?) to minimize the leakage interferences. Then, in a two-way iterative strategy, the proposed scheme alternates between ?L? and ?R? sides to design the IA filters through the joint sum-rate maximization and interference leakage minimization on each side. Finally, a modified version of the two-way iterative strategy is proposed to design the IA filters on the basis of signal-to-interference-plus-noise ratio (SINR) (instead of the interference minimization) and the sum-rate maximization techniques. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
Interference Alignment (IA) / Optimization Problem / Iterative Algorithms / / / / / |
| Reference Info. |
ITE Tech. Rep., vol. 40, no. 4, BCT2016-25, pp. 33-36, Feb. 2016. |
| Paper # |
BCT2016-25 |
| Date of Issue |
2016-02-11 (BCT) |
| ISSN |
Print edition: ISSN 1342-6893 Online edition: ISSN 2424-1970 |
| Download PDF |
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| Conference Information |
| Committee |
BCT IEEE-BT |
| Conference Date |
2016-02-18 - 2016-02-19 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
Kanpo-No-Yado (Otaru) |
| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
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| Paper Information |
| Registration To |
BCT |
| Conference Code |
2016-02-BCT |
| Language |
English |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
A Centralized Interference Alignment (IA) Design for Multi-User MIMO Interference Channels |
| Sub Title (in English) |
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| Keyword(1) |
Interference Alignment (IA) |
| Keyword(2) |
Optimization Problem |
| Keyword(3) |
Iterative Algorithms |
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| 1st Author's Name |
Fereidoun H. Panahi |
| 1st Author's Affiliation |
Keio University (Keio Univ.) |
| 2nd Author's Name |
Tomoaki Ohtsuki |
| 2nd Author's Affiliation |
Keio University (Keio Univ.) |
| 3rd Author's Name |
Wenjie Jiang |
| 3rd Author's Affiliation |
NTT Network Innovation Laboratories (NTT) |
| 4th Author's Name |
Yasushi Takatori |
| 4th Author's Affiliation |
NTT Network Innovation Laboratories (NTT) |
| 5th Author's Name |
Kazuhiro Uehara |
| 5th Author's Affiliation |
NTT Network Innovation Laboratories (NTT) |
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| Speaker |
Author-1 |
| Date Time |
2016-02-18 16:40:00 |
| Presentation Time |
20 minutes |
| Registration for |
BCT |
| Paper # |
BCT2016-25 |
| Volume (vol) |
vol.40 |
| Number (no) |
no.4 |
| Page |
pp.33-36 |
| #Pages |
4 |
| Date of Issue |
2016-02-11 (BCT) |
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