Performance evaluation of the VBLAST algorithm in W-CDMA systems
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چکیده
In this paper we evaluate performance of the vertical BLAST (VBLAST) receiver algorithm in multipletransmitter/multiple-receiver (MTMR) cellular WCDMA systems. We assume that the VBLAST algorithm is executed on a symbol level (i.e, on the despreaded received signal), following a conventional bank of matched filters (correlators). Also, we introduce concept of virtual antennas. BER performance of the algorithm in presence of intraand inter-cell multiple-access interference (MAI) is evaluated. System (Shannon) capacity is also studied. The observed system is defined based on the UMTS physical layer and corresponding channel models.
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تاریخ انتشار 2001