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Hybrid compression and message-sharing strategy for the downlink cloud radio-access network
- Source :
- ITA
- Publication Year :
- 2014
- Publisher :
- IEEE, 2014.
-
Abstract
- Cloud radio-access network (CRAN) is a wireless cellular network architecture in which the base-stations are connected to a cloud-computing based central processor with digital backhaul links. In this setting, the base-stations can be thought of as relays between the central processor and the user terminals. This paper considers the downlink of a cloud radio-access network with finite-capacity backhaul links. We model the overall network as a broadcast-relay channel, and propose a hybrid compression and message-sharing strategy for the downlink transmission. This paper further proposes numerical techniques for optimizing the quantization noise level in the compression part of the hybrid precoding scheme. We compare the system-level performance of the proposed scheme with the pure compression and the pure message sharing schemes to show the benefit of the hybrid strategy for the downlink CRAN.
- Subjects :
- Radio access network
Wireless cellular networks
business.industry
Computer science
ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS
Cloud computing
Data_CODINGANDINFORMATIONTHEORY
Precoding
Backhaul (telecommunications)
Downlink transmission
Telecommunications link
Computer Science::Networking and Internet Architecture
business
Computer Science::Information Theory
Data compression
Computer network
Subjects
Details
- Database :
- OpenAIRE
- Journal :
- 2014 Information Theory and Applications Workshop (ITA)
- Accession number :
- edsair.doi...........91bb6a4d389932a6482c297ddf31845f