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The authors evaluate the system-level performance and potential capacity gain of MBSFN (Multicast/Broadcast Single Frequency Network) operation in Wideband CDMA (WCDMA) and compare it to conventional Multimedia Broadcast/Multicast Service (MBMS) with macro-diversity combining. MBSFN operation has recently been discussed in the standardization bodies of the 3rd Generation Partnership Project (3GPP) as an enhancement to MBMS. It aims to mitigate the cell-edge problem of multicast/broadcast applications, which are typically dimensioned for a predefined coverage. In WCDMA as considered here, MBSFN operation refers to the use of a single common scrambling code and the same set of spreading codes to simultaneously broadcast bit identical MBMS data in a number of cells that form an MBMS cluster.
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