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 Optimization for Multi-Antenna AF-Relay Aided Over-the-Air Computation
- Release time:2022-09-01
- Hits:
Impact Factor:
6.239DOI number:
10.1109/TVT.2022.3160931Journal:
IEEE Transactions on Vehicular TechnologyAbstract:
Benefiting from exploiting the waveform superposition property in the multi-access channels, over-the-air computation (AirComp) has emerged as a promising technique to swiftly compute functions of data from a large number of sensors. To enlarge the wireless coverage area, a two-phase multi-antenna amplify-and-forward (AF)-relay aided AirComp system is considered, where all the sensors transmit sensing data during both two phases in a half-duplex AF relay system with direct links. We present efficient designs for optimizing the transmit scalar vectors at the sensors, the AF matrix at the relay, and the aggregation vector at the access point, which aims to minimize the mean-square-error (MSE) subject to the transmit power budgets at the relay and the sensors, respectively. To solve the resultant multiple variables coupled non-convex optimization problem efficiently, we develop an alternating optimization-based algorithm to obtain locally optimal solutions. Specifically, in each iteration, closed-form expressions are derived for each optimizing variable. Finally, the computation distortion improvement of our proposed design over baseline schemes is demonstrated via simulations.Co-author:
zhangguangchi,cuimiaoFirst Author:
Li YiqingIndexed by:
Journal paperCorrespondence Author:
jmiaoDiscipline:
EngineeringFirst-Level Discipline:
Information and Communication EngineeringDocument Type:
JVolume:
71Issue:
6Page Number:
6744—6749ISSN No.:
1939-9359Translation or Not:
noDate of Publication:
2022-06-01Included Journals:
SCILinks to published journals:
https://ieeexplore.ieee.org/document/9739947