TY - GEN
T1 - A channel independent precoding for MIMO-OFDM systems with insufficient cyclic prefix
AU - Jin, Yuansheng
AU - Xia, Xiang Gen
PY - 2011
Y1 - 2011
N2 - In this paper, a channel independent precoding for MIMO-OFDM systems of n t transmit and n r receive antennas with insufficient cyclic prefix (CP) is proposed. By empolying the interference alignment (IA) idea, we show that our proposed channel independent precoding scheme can eliminate the inter-block interference (IBI) caused by the insufficient CP with a higher bandwidth efficiency than the conventional zero-padding or adding a sufficient CP when n r ≤ n t. It is also shown that when n r > n t, the IBI can be eliminated without any zero-padding or adding CP or precoding when the OFDM block length is not small.
AB - In this paper, a channel independent precoding for MIMO-OFDM systems of n t transmit and n r receive antennas with insufficient cyclic prefix (CP) is proposed. By empolying the interference alignment (IA) idea, we show that our proposed channel independent precoding scheme can eliminate the inter-block interference (IBI) caused by the insufficient CP with a higher bandwidth efficiency than the conventional zero-padding or adding a sufficient CP when n r ≤ n t. It is also shown that when n r > n t, the IBI can be eliminated without any zero-padding or adding CP or precoding when the OFDM block length is not small.
KW - MIMO-OFDM
KW - insufficient cyclic prefix (CP)
KW - interference alignment (IA)
KW - precoding
UR - http://www.scopus.com/inward/record.url?scp=84857216007&partnerID=8YFLogxK
U2 - 10.1109/GLOCOM.2011.6134214
DO - 10.1109/GLOCOM.2011.6134214
M3 - Conference contribution
AN - SCOPUS:84857216007
SN - 9781424492688
T3 - GLOBECOM - IEEE Global Telecommunications Conference
BT - 2011 IEEE Global Telecommunications Conference, GLOBECOM 2011
T2 - 54th Annual IEEE Global Telecommunications Conference: "Energizing Global Communications", GLOBECOM 2011
Y2 - 5 December 2011 through 9 December 2011
ER -