Interference alignment in the 2 x (1 + N) MIMO model

Mitsuki Yamada, Tomoaki Ohtsuki

研究成果: Conference contribution

6 被引用数 (Scopus)


In modern cellular systems, base station cooperation multiple-input multiple-output (MIMO) in which multiple base stations transmit desired signals to one user is anticipated to alleviate interference at the cell-edge. Cell-edge user is influenced a great deal by interference between different base stations. Inter-cell interference degrades system performance substantially. An interference alignment (IA) scheme was proposed recently to eliminate inter-cell interference. It aligns interference into a smaller-dimensional subspace to eliminate interference. In this paper, we clarify how to apply IA to the 2 base stations (BSs) x (1 + N) mobile stations (MSs), 2 ≤ N < ∞, MIMO model, where one MS, referred to as Cooperated Mobile Station (CMS), is transmitted with two BSs simultaneously, and others, referred to as non cooperated mobile stations (NMSs), are transmitted with one BS. We show that IA is effective to reduce interference at CMS, while achieving the higher capacity than the conventional one through computer simulation.

ホスト出版物のタイトル2010 IEEE Globecom Workshops, GC'10
出版ステータスPublished - 2010
イベント2010 IEEE Globecom Workshops, GC'10 - Miami, FL, United States
継続期間: 2010 12月 52010 12月 10


名前2010 IEEE Globecom Workshops, GC'10


Other2010 IEEE Globecom Workshops, GC'10
国/地域United States
CityMiami, FL

ASJC Scopus subject areas

  • コンピュータ ネットワークおよび通信
  • 通信


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