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Yang, Hyun Jong
Advanced Information System Lab (AiS Lab)
Research Interests
  • Wireless communications, signal processing, physical-layer algorithms, communications theory

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Distributed Sum-Rate Optimization for Full-Duplex MIMO System Under Limited Dynamic Range

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Title
Distributed Sum-Rate Optimization for Full-Duplex MIMO System Under Limited Dynamic Range
Author
Kim, Tae MinYang, Hyun JongPaulraj, Arogyaswami J.
Keywords
Covariance matrix design; distributed optimization; full-duplex; limited dynamic range; MIMO
Issue Date
2013-06
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Citation
IEEE SIGNAL PROCESSING LETTERS, v.20, no.6, pp.555 - 558
Abstract
Distributed sum-rate-maximizing covariance matrices design for full-duplex multi-input multi-output communication is considered, where the information of the loopback interference channels cannot be exchanged reliably due to their large dynamic ranges. We propose a structured covariance matrices design which finds the optimal balance between the two solutions in the extremes of the weak and strong self-interference through a single-parameter optimization. We further propose a low-complexity null projection matrix design algorithm, in which the solution in the strong self-interference regime is designed in the sense to maximize the received channel gain. Exploiting the well-posed structure, the proposed scheme nearly achieves the sum-rate of the previous scheme based on the gradient projection with significantly less amount of inter-node iterations, yielding an increased effective sum-rate and reduced overall complexity for the practial channel block lengths.
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DOI
10.1109/LSP.2013.2248360
ISSN
1070-9908
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EE_Journal Papers
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