Interference alignment-and-cancellation scheme based on Alamouti code for the three-user multi-input-multi-output interference channel
- Authors
- Kim, Jaehong; Jin, Dong-Sup; Jin, Xianglan; No, Jong-Seon; Shin, Dong-Joon
- Issue Date
- Jul-2015
- Publisher
- INST ENGINEERING TECHNOLOGY-IET
- Keywords
- interference suppression; MIMO communication; channel coding; diversity reception; receiving antennas; antenna arrays; interference alignment-and-cancellation scheme; Alamouti code; three-user multiinput-multioutput interference channel; degrees of freedom; DoF; network throughput; reliability; IC scheme; K-user MIMO interference channel; diversity order; receive antennas; IAC scheme; partial CSIT; symbol-by-symbol decoding; channel-state-information at the transmitters
- Citation
- IET COMMUNICATIONS, v.9, no.10, pp.1278 - 1288
- Indexed
- SCIE
SCOPUS
- Journal Title
- IET COMMUNICATIONS
- Volume
- 9
- Number
- 10
- Start Page
- 1278
- End Page
- 1288
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/156875
- DOI
- 10.1049/iet-com.2014.1084
- ISSN
- 1751-8628
- Abstract
- An interference alignment (IA) scheme for interference channels was recently proposed to achieve the maximum degrees of freedom (DoF). Although most studies of IA focus on network throughput, that is, DoF, reliability in terms of diversity order is also an important performance measure. In this study, interference cancellation (IC) scheme based on Alamouti code in the multi-access scenario is applied to the K-user, multi-input-multi-output (MIMO) interference channel. This IC scheme gives the benefit of diversity order and requires no channel-state-information at the transmitters (CSIT). However, it requires more receive antennas than the IA scheme to achieve the same DoF. In order to reduce the number of receive antennas, especially for the three-user MIMO interference channel, an IA-and-cancellation (IAC) scheme based on Alamouti code is proposed. It keeps the same DoF as the IC scheme, but requires partial CSIT. It is analytically shown that the IC and IAC schemes enable symbol-by-symbol decoding and achieve diversity order of two, while the conventional IA scheme achieves diversity order of one.
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