Investigation of Inter-Cell Transmission Power Control Using Overload Indicator for Selected Users for Evolved UTRA Uplink
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概要
- 論文の詳細を見る
This paper proposes the use of inter-cell transmission power control (TPC) with overload indicator (OLI) signaling to user equipment (UE) in addition to intra-cell TPC for the Evolved UTRA uplink. In the proposed inter-cell OLI transmission method, a cell site (Node B) selects UEs offering high-level interferences to the cell site based on the measured path loss difference, and then, the cell site transmits the OLI signal to the selected UEs. The simulation results show that the inter-cell TPC improves both the average user throughput and cell-edge user throughput at 5% in the cumulative distribution function (CDF) curve, assuming the same sector throughput. For instance, when the sector throughput is 1Mbps using 1.08MHz bandwidth, the inter-cell TPC with the proposed UE-common OLI scheme increases the average user throughput and the 5%-cell edge user throughput by approximately 41% and 53%, respectively, compared to the case with intra-cell TPC only. Furthermore, when the inter-cell TPC with the proposed UE-individual OLI is employed, the corresponding average user throughput and the 5% user throughput are increased by approximately 87% and 94%, respectively.
- 2009-05-01
著者
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KISHIYAMA Yoshihisa
Radio Access Network Development Department, NTT DOCOMO, INC.
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HIGUCHI Kenichi
Department of Electrical Engineering, Tokyo University of Science
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SAWAHASHI Mamoru
Department of Information Network Engineering, Musashi Institute of Technology
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Higuchi K
Wireless Research Laboratories Ntt Docomo Inc.
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Higuchi K
Department Of Electrical Engineering Tokyo University Of Science
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NISHIKAWA Daisuke
Radio Access Network Development Department, NTT DOCOMO, INC.
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Sawahashi Mamoru
Department Of Electrical Engineering Tokyo University Of Science
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Nishikawa Daisuke
Radio Access Network Development Department Ntt Docomo Inc.
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Kishiyama Yoshihisa
Radio Access Network Development Department Ntt Docomo Inc.
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Kishiyama Yoshihisa
Wireless Laboratories Ntt Do Como Inc.
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Higuchi Kenichi
Department Of Electrical Engineering Tokyo University Of Science
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Kakura Yoshikazu
Radio Access Network Development Department Ntt Docomo Inc.
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Kishiyama Yoshihisa
Radio Access Network Development Department NTT DOCOMO INC
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