Optimal setup of interference threshold in a multi-cell WCDMA environment

  • Authors:

  • Jae-Hoon Kim;Yong-Joo Chung;Dong-Wan Tcha

  • Affiliations:

  • Graduate School of Management, Korea Advance Institute of Science and Technology (KAIST), 207-43 Cheongryangri-dong Dongdae, Seoul 130012, South Korea;Department of Information Systems, Pusan University of Foreign Studies, Pusan, South Korea;Graduate School of Management, Korea Advance Institute of Science and Technology (KAIST), 207-43 Cheongryangri-dong Dongdae, Seoul 130012, South Korea

  • Venue:
  • Computer Communications
  • Year:
  • 2003

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Abstract

The cell capacity of a CDMA system is mainly determined by the sum of interferences generated by call connections. Focusing on downlink interferences in a WCDMA system, we address a threshold-type call control scheme. Finding the characteristic pattern of an expected cell-throughput, we formulate a mathematical program maximizing the system throughput. The solution shows the optimal interference threshold value for each cell, which also demonstrates the effects of allowing differences in thresholds among cells