TY - GEN
T1 - Downlink site selection transmit diversity with power allocation for A 2-dimensional block spread DS-CDMA cellular system
AU - Liu, Le
AU - Adachi, Fumiyuki
PY - 2007/11/27
Y1 - 2007/11/27
N2 - 2-dimensional (2D) block spread direct sequence-code division multiple access (DS-CDMA) allows mutli-rate/mutli-eonneetion without causing downlink multi-access interference (MAI) in the presence of a frequency-selective fading channel. However, in a cellular system, the inter-cell interference remains. The site selection diversity transmission (SSDT) can be used to reduce the inter-cell interference and increase the downlink capacity. In this paper, we show that if adaptive power allocation is applied, where the BS allocates different power levels to different users according to their channel conditions, 2D block spread DS-CDMA with SSDT provides larger downlink capacity than the conventional DS-CDMA with SSDT.
AB - 2-dimensional (2D) block spread direct sequence-code division multiple access (DS-CDMA) allows mutli-rate/mutli-eonneetion without causing downlink multi-access interference (MAI) in the presence of a frequency-selective fading channel. However, in a cellular system, the inter-cell interference remains. The site selection diversity transmission (SSDT) can be used to reduce the inter-cell interference and increase the downlink capacity. In this paper, we show that if adaptive power allocation is applied, where the BS allocates different power levels to different users according to their channel conditions, 2D block spread DS-CDMA with SSDT provides larger downlink capacity than the conventional DS-CDMA with SSDT.
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U2 - 10.1109/WCNC.2007.377
DO - 10.1109/WCNC.2007.377
M3 - Conference contribution
AN - SCOPUS:36348950462
SN - 1424406595
SN - 9781424406593
T3 - IEEE Wireless Communications and Networking Conference, WCNC
SP - 2014
EP - 2018
BT - 2007 IEEE Wireless Communications and Networking Conference, WCNC 2007
T2 - 2007 IEEE Wireless Communications and Networking Conference, WCNC 2007
Y2 - 11 March 2007 through 15 March 2007
ER -