TY - GEN
T1 - Interference robustness for cellular MIMO networks
AU - Dotzler, A.
AU - Riemensberger, M.
AU - Utschick, W.
AU - Dietl, G.
PY - 2012
Y1 - 2012
N2 - Uncertainty in the spatial signature of interfering signals is a major source of performance degradation in the downlink of a MIMO network. In general, the exact transmit covariance matrix of the other transmitters can not be predicted correctly in advance as the optimal strategies mutually depend on each other. In this work, we investigate two approaches for optimizing downlink transmission that are robust to interference, while operating in absence of cross channel information at the transmitter. Although they may seem unrelated, the two approaches share an interesting symmetry and are both derived from a more general minimax duality.
AB - Uncertainty in the spatial signature of interfering signals is a major source of performance degradation in the downlink of a MIMO network. In general, the exact transmit covariance matrix of the other transmitters can not be predicted correctly in advance as the optimal strategies mutually depend on each other. In this work, we investigate two approaches for optimizing downlink transmission that are robust to interference, while operating in absence of cross channel information at the transmitter. Although they may seem unrelated, the two approaches share an interesting symmetry and are both derived from a more general minimax duality.
UR - http://www.scopus.com/inward/record.url?scp=84868036063&partnerID=8YFLogxK
U2 - 10.1109/SPAWC.2012.6292899
DO - 10.1109/SPAWC.2012.6292899
M3 - Conference contribution
AN - SCOPUS:84868036063
SN - 9781467309714
T3 - IEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC
SP - 229
EP - 233
BT - 2012 IEEE 13th International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2012
T2 - 2012 IEEE 13th International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2012
Y2 - 17 June 2012 through 20 June 2012
ER -