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Linear Precoding De...
Linear Precoding Design for Cache-aided Full-duplex Networks
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Vu, T. X. (författare)
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Vu, T. A. (författare)
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Lei, L. (författare)
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Chatzinotas, S. (författare)
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- Ottersten, Björn, 1961- (författare)
- Interdisciplinary Centre for Security, Reliability and Trust (SnT) - University of Luxembourg, 29 Av. J.F. Kennedy, L-1855, Luxembourg,Signal Processing
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Interdisciplinary Centre for Security, Reliability and Trust (SnT) - University of Luxembourg, 29 Av J.F. Kennedy, L-1855, Luxembourg Signal Processing (creator_code:org_t)
- 2019
- 2019
- Engelska.
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Ingår i: IEEE Wireless Communications and Networking Conference, WCNCVolume 2019-April, April 2019.
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Edge caching has received much attention as a promising technique to overcome the stringent latency and data hungry challenges in the future generation wireless networks. Meanwhile, full-duplex (FD) transmission can potentially double the spectral efficiency by allowing a node to receive and transmit simultaneously. In this paper, we study a cache-aided FD system via delivery time analysis and optimization. In the considered system, an edge node (EN) operates in FD mode and serves users via wireless channels. Two optimization problems are formulated to minimize the largest delivery time based on the two popular linear beamforming zero-forcing and minimum mean square error designs. Since the formulated problems are non-convex due to the self-interference at the EN, we propose two iterative optimization algorithms based on the inner approximation method. The convergence of the proposed iterative algorithms is analytically guaranteed. Finally, the impacts of caching and the advantages of the FD system over the half-duplex (HD) counterpart are demonstrated via numerical results.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Signalbehandling (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Signal Processing (hsv//eng)
Publikations- och innehållstyp
- ref (ämneskategori)
- kon (ämneskategori)