On the Optimality of Multiuser Zero-Forcing Precoding in MIMO Broadcast Channels

• Published in: IEEE VTS Vehicular Technology Conference (1999) pp. 1 - 5
• Main Authors: Kaviani, S., Krzymien, W.A.
• Format: Conference Proceeding
• Language: English
• Published: IEEE 01.04.2009
• Subjects: Base stations; Broadcasting; Downlink; Gaussian noise; MIMO; Null space; Quality of service; Receiving antennas; Throughput; Transmitting antennas
• ISSN: 1550-2252
• DOI: 10.1109/VETECS.2009.5073733

In this paper, we consider a multiuser Gaussian broadcast channel where the base station and the users both are equipped with multiple antennas. The problem of optimal zero-forcing (ZF) precoding design subject to sum power constraint is discussed. Block diagonalization (BD) is applied as the ZF pre...