FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W4312852905> ?p ?o ?g. }

• W4312852905 endingPage "4306" @default.
• W4312852905 startingPage "4292" @default.
• W4312852905 abstract "The newly emerging intelligent reflecting surface (IRS) with large-scale passive reflecting elements has great potentials to enhance the performance of wireless-powered Internet of Things (IoT) networks, by manipulating the wireless channel. However, most of the existing works considered the ideal reflection of IRS elements with independent amplitude and phase shift. In this article, an IRS-assisted wireless-powered multiuser multi-input-multi-output network is considered, taking into account the practical coupling effect between the reflecting amplitude and the phase shift. Then, an uplink sum-rate maximization problem is investigated by jointly designing the active beamforming of multiple antennas, the passive beamforming of the IRS, and the time allocation ratio. Due to the tightly coupled optimization variables, the formulated problem is nonconvex. To effectively solve this problem, we decompose it into three subproblems, i.e., the active beamforming, the downlink passive beamforming, and the uplink passive beamforming. For the active beamforming design, access point’s optimal downlink energy beamforming matrix is proved to be rank-one, and IoT users’ optimal uplink information covariance matrices are derived in semi-closed forms. For the downlink passive beamforming design, a low-complexity algorithm based on the successive convex approximation and the penalty function method is proposed. For the uplink passive beamforming design, the multiuser problem is equivalently transformed into a virtual single-user problem, which is solved via an iterative algorithm. Numerical results show that, in comparison with algorithms without IRS, our proposed algorithm can significantly improve the uplink sum rate up to 50% when the number of passive elements is 100." @default.
• W4312852905 created "2023-01-05" @default.
• W4312852905 creator A5012378492 @default.
• W4312852905 creator A5041465972 @default.
• W4312852905 creator A5048712226 @default.
• W4312852905 creator A5050651525 @default.
• W4312852905 creator A5060248240 @default.
• W4312852905 date "2023-03-01" @default.
• W4312852905 modified "2023-10-04" @default.
• W4312852905 title "Sum-Rate Maximization in IRS-Assisted Wireless-Powered Multiuser MIMO Networks With Practical Phase Shift" @default.
• W4312852905 cites W1916723779 @default.
• W4312852905 cites W1997834106 @default.
• W4312852905 cites W2032372805 @default.
• W4312852905 cites W2094000142 @default.
• W4312852905 cites W2106616990 @default.
• W4312852905 cites W2106864314 @default.
• W4312852905 cites W2900655085 @default.
• W4312852905 cites W2903456545 @default.
• W4312852905 cites W2968389137 @default.
• W4312852905 cites W2968810373 @default.
• W4312852905 cites W2996961035 @default.
• W4312852905 cites W3021225717 @default.
• W4312852905 cites W3022916026 @default.
• W4312852905 cites W3035049807 @default.
• W4312852905 cites W3035386068 @default.
• W4312852905 cites W3038534820 @default.
• W4312852905 cites W3048433592 @default.
• W4312852905 cites W3100536113 @default.
• W4312852905 cites W3101479475 @default.
• W4312852905 cites W3102940967 @default.
• W4312852905 cites W3105509069 @default.
• W4312852905 cites W3114917120 @default.
• W4312852905 cites W3128307304 @default.
• W4312852905 cites W3146827687 @default.
• W4312852905 cites W3156456874 @default.
• W4312852905 cites W3159238803 @default.
• W4312852905 cites W3163858617 @default.
• W4312852905 cites W3174510089 @default.
• W4312852905 cites W3184496427 @default.
• W4312852905 cites W3190043830 @default.
• W4312852905 cites W3196114134 @default.
• W4312852905 cites W3210046596 @default.
• W4312852905 cites W4210540330 @default.
• W4312852905 cites W4250589301 @default.
• W4312852905 doi "https://doi.org/10.1109/jiot.2022.3216449" @default.
• W4312852905 hasPublicationYear "2023" @default.
• W4312852905 type Work @default.
• W4312852905 citedByCount "1" @default.
• W4312852905 countsByYear W43128529052023 @default.
• W4312852905 crossrefType "journal-article" @default.
• W4312852905 hasAuthorship W4312852905A5012378492 @default.
• W4312852905 hasAuthorship W4312852905A5041465972 @default.
• W4312852905 hasAuthorship W4312852905A5048712226 @default.
• W4312852905 hasAuthorship W4312852905A5050651525 @default.
• W4312852905 hasAuthorship W4312852905A5060248240 @default.
• W4312852905 hasConcept C126255220 @default.
• W4312852905 hasConcept C127162648 @default.
• W4312852905 hasConcept C127413603 @default.
• W4312852905 hasConcept C207987634 @default.
• W4312852905 hasConcept C24326235 @default.
• W4312852905 hasConcept C2776330181 @default.
• W4312852905 hasConcept C31258907 @default.
• W4312852905 hasConcept C33923547 @default.
• W4312852905 hasConcept C41008148 @default.
• W4312852905 hasConcept C555944384 @default.
• W4312852905 hasConcept C76155785 @default.
• W4312852905 hasConceptScore W4312852905C126255220 @default.
• W4312852905 hasConceptScore W4312852905C127162648 @default.
• W4312852905 hasConceptScore W4312852905C127413603 @default.
• W4312852905 hasConceptScore W4312852905C207987634 @default.
• W4312852905 hasConceptScore W4312852905C24326235 @default.
• W4312852905 hasConceptScore W4312852905C2776330181 @default.
• W4312852905 hasConceptScore W4312852905C31258907 @default.
• W4312852905 hasConceptScore W4312852905C33923547 @default.
• W4312852905 hasConceptScore W4312852905C41008148 @default.
• W4312852905 hasConceptScore W4312852905C555944384 @default.
• W4312852905 hasConceptScore W4312852905C76155785 @default.
• W4312852905 hasFunder F4320321001 @default.
• W4312852905 hasFunder F4320335777 @default.
• W4312852905 hasIssue "5" @default.
• W4312852905 hasLocation W43128529051 @default.
• W4312852905 hasOpenAccess W4312852905 @default.
• W4312852905 hasPrimaryLocation W43128529051 @default.
• W4312852905 hasRelatedWork W2130966263 @default.
• W4312852905 hasRelatedWork W2151488380 @default.
• W4312852905 hasRelatedWork W2152668756 @default.
• W4312852905 hasRelatedWork W2885603702 @default.
• W4312852905 hasRelatedWork W2941995125 @default.
• W4312852905 hasRelatedWork W2963622759 @default.
• W4312852905 hasRelatedWork W3162982859 @default.
• W4312852905 hasRelatedWork W3175128050 @default.
• W4312852905 hasRelatedWork W4283220670 @default.
• W4312852905 hasRelatedWork W4313894505 @default.
• W4312852905 hasVolume "10" @default.
• W4312852905 isParatext "false" @default.
• W4312852905 isRetracted "false" @default.
• W4312852905 workType "article" @default.