Current Result Document :
| 한글제목(Korean Title) |
Interference Alignment For A Three-User Underlay Interference Channel |
| 영문제목(English Title) |
Interference Alignment For A Three-User Underlay Interference Channel |
| 저자(Author) |
Dae Kyu Shin
Wan Choi
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| 원문수록처(Citation) |
VOL 21 NO. 01 PP. 4B ~ 0003 (2011. 04) |
한글내용
(Korean Abstract) |
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영문내용
(English Abstract) |
In this paper, we consider a three-user symmetric underlay interference channel where three users are underlaid with one primary user. The QoS of primary user is guaranteed in terms of degrees of freedom (DoF). To secure target DoF for a primary user, underlay users should restrict their transmission while they try to achieve maximum DoF at the same time. DoF of each underlaid user is analyzed for a propagation delay based interference alignment (IA) model. Here, we suggest three specific delay based transmission models which assume either synchronous or asynchronous transmission. Also, the simple Han-Kobayashi scheme is considered to increase DoF of underlay users. As a result, we see the achievable DoF of underlay users for a variable interference regime and confirm that it is quite different with those of a conventional interference channel.
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