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Journal Article
An Adaptive Power Saving Scheme in OFDMA-TDD-Based Cellular Relay Networks
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- Authors
- Se-Jin KIM, Byung-Bog LEE, You-Chang KO, Seungwan RYU, Hyong-Woo LEE, Choong-Ho CHO
- Issue Date
- 2010-06
- Citation
- IEICE Transactions on Communications, v.E93.B, no.6, pp.1657-1660
- ISSN
- 0916-8516
- Publisher
- 일본, 전자정보통신학회 (IEICE)
- Language
- English
- Type
- Journal Article
- Abstract
- We present an adaptive power saving (APS) scheme to reduce downlink energy consumption of the transmit power in the cellular relay network (CRN). In the APS scheme, some cell topologies operating in 2-hop mode using relay stations (RSs) are converted to that of 3-hop mode and others are simultaneously converted to that of single-hop mode when the offered traffic load becomes very low, especially during night periods. By this means, we show the APS scheme outperforms the conventional CRN (CCRN) scheme in terms of energy consumption.
- KSP Keywords
- Adaptive power, Cellular relay networks, Offered traffic, Single-hop mode, Traffic Load, Transmit Power, energy consumption, power saving, relay station