2017
DOI: 10.1109/tit.2017.2655343
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Retrospective Interference Alignment: Degrees of Freedom Scaling With Distributed Transmitters

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Cited by 32 publications
(23 citation statements)
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“…Asymptotic IA is an opportunistic technique that exploits the presence of complementary channel states in equal magnitudes to achieve linear IA [28]. [33][34][35][36] Distributed IA Local Single [37][38][39][40] Subspace IA Perfect Multi [29,[41][42][43] Blind IA Absent Single [25,44,45] Ergodic IA Perfect/delayed Single [36,46,47] Retrospective IA Delayed Single [26,39,43] Lattice Alignment Perfect Single [40,[48][49][50][51] IA and Cancelation Perfect Single/Multi [27,52,53] Opportunistic IA Perfect Single/Multi [28,54,55] Asymptotic IA Perfect Single…”
Section: General Ia Techniquesmentioning
confidence: 99%
“…Asymptotic IA is an opportunistic technique that exploits the presence of complementary channel states in equal magnitudes to achieve linear IA [28]. [33][34][35][36] Distributed IA Local Single [37][38][39][40] Subspace IA Perfect Multi [29,[41][42][43] Blind IA Absent Single [25,44,45] Ergodic IA Perfect/delayed Single [36,46,47] Retrospective IA Delayed Single [26,39,43] Lattice Alignment Perfect Single [40,[48][49][50][51] IA and Cancelation Perfect Single/Multi [27,52,53] Opportunistic IA Perfect Single/Multi [28,54,55] Asymptotic IA Perfect Single…”
Section: General Ia Techniquesmentioning
confidence: 99%
“…To ensure the desired signal can be received without interference, we need to design the receive beamforming matrix at each user. According to (7), although the desired signals to the same CCU in different sub-time slots are aligned by relay, the aligned signal to UE [1,1] still overlaps with the interference caused by Relay 1. Furthermore, the interference in sub-time slot 1 should also be considered when designing the receive beamforming matrix.…”
Section: Nullifying Inter-cell and Intra-cell Interferencementioning
confidence: 99%
“…In References [4][5][6], closed-form IA schemes were investigated to reduce the computational complexity and offload the backhaul overhead. A retrospective interference alignment method was proposed in Reference [7], where it is shown that even under delay channel state information (CSI) the capacity also scales with the number of users. A cognitive IA (CIA) scheme was proposed in Reference [8] to deal with the interference and improve the spectral efficiency for the case of several self-organizing small cells serving one user in a heterogeneous network (HetNet).…”
Section: Introductionmentioning
confidence: 99%
“…The main drawback of these schemes is that the achievable DoF does not scale with the number of users. In a recent work [ 8 ], a novel transmission scheme for the K -user SISO interference channel is presented which achieves DoF almost surely under delayed CSIT model. The result in [ 8 ] is particularly interesting, as it shows that the sum DoF for the K -user interference channel does scale with , even with delayed CSIT.…”
Section: Introductionmentioning
confidence: 99%