李亦卿
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Personal Information
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Date of Birth:
1993-06-01 -
Date of Employment:
2022-07-12 -
School/Department:
计算机学院 -
Gender:
Female -
Status:
On-the-job -
Teacher College:
School of Computer Science
Other Contact Information:
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Telephone:
34687a723eac0ff313e12e1c64d548b24049657e0822725911fd49c4d7e0e045de94f690f8c37dd615b2a231b0f4847ecf20bb716285bf38df482aa5aad5ef328382ebb5f545a96834645e2bef6d4615375af90c3672a5cbe989e4ea08ca6fa10b52c9e99cd7662d76d9ca28403b70616f778f610c6355fb53f5f18d0ff33949 -
Email:
7c15073ef83d586dff621380cf9eacbec4b3b23278f2bfd50ced17d3db6f84c91f3d93520204c62d47e6c6d0c0dba138c17dd050e755a10854f78da7035deaeaa558e1bb20387c9f8ae13fb5ab6cfd953aade14f6fb956e05fe35fffece1468e934c71093d919d2da740badbc12e00b398185bd189b79c881b804e8c6804f5d1
Paper Publications
Current position: Home > Scientific Research > Paper Publications
Joint Beamforming Optimization in Multi-Relay Assisted MIMO Over-The-Air Computation for Multi-Modal Sensing Data Aggregation
- Release time:2022-09-01
- Hits:
Impact Factor:
3.553DOI number:
10.1109/LCOMM.2021.3120182Journal:
IEEE Communications LettersAbstract:
In this letter, we investigate a multi-relay assisted over-the-air computation network for multi-modal sensing with direct links, where each node is equipped with multiple antennas and all the relays are operated in an amplify-and-forward mode. Specifically, the whole transmission is divided into two phases and all the sensors transmit symbols during both two phases. In particular, we are interested in minimizing the computation distortion measured by the mean-squared error (MSE) via jointly optimizing beamforming matrices at all nodes, subject to individual power constraints at the sensors and relays. The major difficulty lies in the strong coupling of beamforming matrices in the objective function and the non-convex transmit power constraints at the relays. To tackle this problem, a low-complexity locally optimal method based on alternating optimization is proposed, where closed-form expressions are obtained in each iteration. Furthermore, simulation results show that our proposed beamforming design can substantially enhance the computation MSE performance, as compared to other benchmark schemes.Co-author:
zhangguangchi,cuimiaoFirst Author:
jmiaoCorrespondence Author:
Li YiqingDiscipline:
EngineeringFirst-Level Discipline:
Information and Communication EngineeringDocument Type:
JVolume:
25Issue:
12Page Number:
3937–3941ISSN No.:
1558-2558Translation or Not:
noDate of Publication:
2021-12-01Included Journals:
SCILinks to published journals:
https://ieeexplore.ieee.org/document/9570302