TY - GEN
T1 - Power allocation for direct/cooperative AF relay switched SC-FDMA
AU - Nakada, Masayuki
AU - Obara, Tatsunori
AU - Yamamoto, Tetsuya
AU - Adachi, Fumiyuki
PY - 2012
Y1 - 2012
N2 - In this paper, we propose a power allocation method for the direct/cooperative amplify-and-forward (AF) relay switched SC-FDMA using spectrum division/adaptive subcarrier allocation (SDASA). The cooperative relaying is used only when it can achieve higher channel capacity than the direct communication. In the proposed power allocation method, transmit power is adaptively allocated to mobile terminal (MT) and relay station (RS) according to the channel conditions of MT-RS link and RS-base station (BS) link when the use of cooperative relay is selected. We evaluate the achievable channel capacity of the proposed power allocation method by Monte-Carlo numerical computation method. It is shown that the proposed power allocation method can achieve almost the same channel capacity as the grid search method.
AB - In this paper, we propose a power allocation method for the direct/cooperative amplify-and-forward (AF) relay switched SC-FDMA using spectrum division/adaptive subcarrier allocation (SDASA). The cooperative relaying is used only when it can achieve higher channel capacity than the direct communication. In the proposed power allocation method, transmit power is adaptively allocated to mobile terminal (MT) and relay station (RS) according to the channel conditions of MT-RS link and RS-base station (BS) link when the use of cooperative relay is selected. We evaluate the achievable channel capacity of the proposed power allocation method by Monte-Carlo numerical computation method. It is shown that the proposed power allocation method can achieve almost the same channel capacity as the grid search method.
KW - Cooperative AF relay
KW - SC-FDMA
KW - spectrum divisoin/adaptive subcarrier allocation
UR - http://www.scopus.com/inward/record.url?scp=84864974884&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84864974884&partnerID=8YFLogxK
U2 - 10.1109/VETECS.2012.6240277
DO - 10.1109/VETECS.2012.6240277
M3 - Conference contribution
AN - SCOPUS:84864974884
SN - 9781467309905
T3 - IEEE Vehicular Technology Conference
BT - IEEE 75th Vehicular Technology Conference, VTC Spring 2012 - Proceedings
T2 - IEEE 75th Vehicular Technology Conference, VTC Spring 2012
Y2 - 6 May 2012 through 9 June 2012
ER -