Investigation of Inter-Cell Transmission Power Control Using Overload Indicator for Selected Users for Evolved UTRA Uplink

• NISHIKAWA Daisuke

  Radio Access Network Development Department, NTT DOCOMO, INC.

• KISHIYAMA Yoshihisa

  Radio Access Network Development Department, NTT DOCOMO, INC.

• HIGUCHI Kenichi

  Department of Electrical Engineering, Tokyo University of Science

• SAWAHASHI Mamoru

  Department of Information Network Engineering, Musashi Institute of Technology

抄録

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.

収録刊行物

• IEICE Transactions on Communications

  IEICE Transactions on Communications E92-B (5), 1634-1640, 2009

  一般社団法人 電子情報通信学会

キーワード

• Evolved UTRA
• transmission power control
• overload indicator
• inter-cell interference

詳細情報

• CRID: 1390001204372994432
• NII論文ID: 10026838047
• NII書誌ID: AA10826261
• DOI: 10.1587/transcom.e92.b.1634
• ISSN: 17451345
• ISSN: 09168516
• Web Site: http://www.jstage.jst.go.jp/article/transcom/E92.B/5/E92.B_5_1634/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可