On-Demanded Multicast Zone Configuration in CDMA Network Systems

  • Authors:

  • Jae-Hoon Kim;Woon-Young Yeo

  • Affiliations:

  • Division of Industrial & Information Systems Engineering, Ajou University, Suwon, Korea 443-749;Department of Information and Communications Engineering, Sejong University, Seoul, Korea 143-747

  • Venue:
  • Wireless Personal Communications: An International Journal
  • Year:
  • 2010

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Abstract

Focusing on enriched multimedia broadcast/multicast opportunities of a wireless communication network, we build multicast cell configurations in a CDMA based network. In a CDMA based wireless network, a terminal can get significant signal quality enhancement by the combining of data streams from multiple base stations. To combine the data streams, the base stations have to be operated with a common time schedule. The cells whose base stations are operated as such are called soft-combine cells. A terminal can take advantage of signal quality enhancement, if the terminal is in a soft-combine cell and at least one neighbor cell supports soft-combine. Our problem is to find a limited number of soft-combine cells under the computing burden of the network controller, while the benefit of soft-combine is maximized. We build a combinatorial optimization model and solution methods for the dynamic reconfigurations of soft-combine supporting cells.