scholarly journals Inter-cell interference alignment in multi cell multiuser channels

2012 ◽  
Vol 9 (6) ◽  
pp. 586-589 ◽  
Author(s):  
Duckdong Hwang
Keyword(s):  
Interference Alignment ◽  
Multiuser Channels ◽  
Inter Cell Interference

scholarly journals A Cross Time Slot Partial Interference Alignment Scheme in Two-Cell Relay Heterogeneous Networks

2019 ◽  
Vol 9 (4) ◽  
pp. 652 ◽  
Author(s):  
Cai Qin ◽  
Chaowei Wang ◽  
Du Pan ◽  
Weidong Wang ◽  
Yinghai Zhang
Keyword(s):  
Degrees Of Freedom ◽  
Time Slot ◽  
Interference Alignment ◽  
Rate Performance ◽  
Amplify And Forward ◽  
Feasibility Condition ◽  
Half Duplex ◽  
Partial Interference ◽  
Inter Cell Interference ◽  
Cell Edge User

The interference of a two-cell two-hop multi-input–multi-output (MIMO) heterogeneous network where the cell-center user (CCU) coexists with the cell-edge user (CEU) is complex to characterize and costly to suppress. In downlink, the CEU is assumed to be served by a half-duplex relay with amplify-and-forward mode. To suppress the intra-cell and inter-cell interference, a cross time slot partial interference alignment (TPIA) scheme, which aligns the interference terms generated in different sub-time slots to the same subspace, is proposed in this paper. Furthermore, the feasibility condition of antenna configuration is analyzed. Simulation results indicate that the TPIA scheme outperforms other existing conventional techniques in achievable sum degrees of freedom and sum-rate performance.

Clustering for Interference Alignment with Cache-Enabled Base Stations under Limited Backhaul Links

2020 ◽  
Vol E103.B (7) ◽  
pp. 796-803
Author(s):  
Junyao RAN ◽  
Youhua FU ◽  
Hairong WANG ◽  
Chen LIU
Keyword(s):  
Interference Alignment ◽  
Base Stations ◽  
Backhaul Links
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