TY - GEN
T1 - Applicability of distributed transmit power control based on uplink-downlink duality to multi-user distributed antenna systems
AU - Kumagawa, Shigemasa
AU - Yamamoto, Koji
AU - Murata, Hidekazu
AU - Yoshida, Susumu
AU - Umehara, Daisuke
AU - Denno, Satoshi
AU - Morikura, Masahiro
PY - 2012/12/1
Y1 - 2012/12/1
N2 - Transmit power control to minimize transmit power for multi-user distributed antenna systems (MU-DASs) is necessary to improve spectrum efficiency. In previous work, distributed transmit power control (DTPC) algorithm for cellular MIMO systems has been developed based on uplink-downlink duality. The performance of this DTPC algorithm in MU-DASs is evaluated in this paper because MU-DASs is different from cellular MIMO systems in terms of an effect of the co-channel interference (CCI). Computer simulations show that the sum of transmit power is decreased because of uplink-downlink duality assumption. In addition to this, an advantage of MU-DAS is shown. However, it is shown that the sum of transmit power is not always minimized without optimization of clustering.
AB - Transmit power control to minimize transmit power for multi-user distributed antenna systems (MU-DASs) is necessary to improve spectrum efficiency. In previous work, distributed transmit power control (DTPC) algorithm for cellular MIMO systems has been developed based on uplink-downlink duality. The performance of this DTPC algorithm in MU-DASs is evaluated in this paper because MU-DASs is different from cellular MIMO systems in terms of an effect of the co-channel interference (CCI). Computer simulations show that the sum of transmit power is decreased because of uplink-downlink duality assumption. In addition to this, an advantage of MU-DAS is shown. However, it is shown that the sum of transmit power is not always minimized without optimization of clustering.
UR - http://www.scopus.com/inward/record.url?scp=84873565256&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84873565256&partnerID=8YFLogxK
U2 - 10.1109/ICCS.2012.6406202
DO - 10.1109/ICCS.2012.6406202
M3 - Conference contribution
AN - SCOPUS:84873565256
SN - 9781467320542
T3 - 2012 IEEE International Conference on Communication Systems, ICCS 2012
SP - 519
EP - 523
BT - 2012 IEEE International Conference on Communication Systems, ICCS 2012
T2 - 2012 IEEE International Conference on Communication Systems, ICCS 2012
Y2 - 21 November 2012 through 23 November 2012
ER -