2022
DOI: 10.1109/tcomm.2022.3159658
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Degrees of Freedom of the K-User Interference Channel Assisted by Active and Passive IRSs

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Cited by 22 publications
(31 citation statements)
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“…where the expressions of F lb,r A k,k,k (v k , µ k ) and G lb,r A i,k,j (v j ) can be found in Section III-B after (22) with index "t" replaced by "r". By direct inspection, problem (32) is a convex QCQP that can be solved exactly using readily available solvers such as CVX [37].…”
Section: Proposed Algorithms For (P2) and (P2-d)mentioning
confidence: 99%
See 1 more Smart Citation
“…where the expressions of F lb,r A k,k,k (v k , µ k ) and G lb,r A i,k,j (v j ) can be found in Section III-B after (22) with index "t" replaced by "r". By direct inspection, problem (32) is a convex QCQP that can be solved exactly using readily available solvers such as CVX [37].…”
Section: Proposed Algorithms For (P2) and (P2-d)mentioning
confidence: 99%
“…{{S i,j }, {τ j }} by only applying the change of variables (i.e., defining W i,j = τ j S i,j , ∀i, j ∈ K). On the other hand, similar to (32), the subproblem of (P2-D) w.r.t. {v j } can be approximated as a convex QCQP, which differs from (32) in that the first constraint…”
Section: B Proposed Algorithm For (P2-d)mentioning
confidence: 99%
“…Θ ∈ C M ×M is a diagonal matrix representing the IRS phase profile. Throughout this paper, we assume that the IRS is passive and therefore for each element we have |θ m | ≤ 1 [31]. Furthermore, the channels from the source to the IRS and from the IRS to the destination are also assumed to be partially known and denoted as H SI and H ID respectively.…”
Section: System Modelmentioning
confidence: 99%
“…We consider an orthogonal multiple access and so the users are communicated with the BS on orthogonal sub-channels. 1 For notation simplicity, we denote the sets of users, tiles per IRS, and passive reflection units per tile as K {1, 2, . .…”
Section: B System Modelmentioning
confidence: 99%
“…W ITH the goal of maintaining service for different types of applications, the sixth-generation (6G) wireless communication network (WCN) is aimed to satisfy more stringent requirements than the fifth-generation (5G) in different aspects, such as energy efficiency, ultra-high data rate, global coverage, low latency, and extremely high reliability. Recently both academia and industry are concertedly looking into beyond 5G (B5G) [1]. In order to explore the new technologies to make the above requirements feasible intelligent reflecting surface (IRS) is one of the promising technologies to construct the proper infrastructure in 6G networks.…”
Section: Introductionmentioning
confidence: 99%