TY - GEN
T1 - Adaptive power allocation for bi-directional single-carrier relay using analog network coding
AU - Miyazaki, Hiroyuki
AU - Nakada, Masayuki
AU - Obara, Tatsunori
AU - Adachi, Fumiyuki
PY - 2011
Y1 - 2011
N2 - Relay using analog network coding (ANC) can achieve the same maximum throughput as the direct transmission while reducing the required transmit power. In this paper, we propose an adaptive power allocation scheme for bidirectional single-carrier (SC) ANC. The proposed scheme adaptively allocates the transmit power so as to make the instantaneous signal-to-interference plus noise power ratios (SINRs) of both up and down links identical and maximized. Since it is quite difficult to obtain the optimal solution, we derive an approximate solution. We evaluate, by computer simulation, the distributions of bit error rate (BER) and throughput when using the proposed power allocation. It is shown that the proposed scheme can improve the BER and throughput performances compared to equal power allocation.
AB - Relay using analog network coding (ANC) can achieve the same maximum throughput as the direct transmission while reducing the required transmit power. In this paper, we propose an adaptive power allocation scheme for bidirectional single-carrier (SC) ANC. The proposed scheme adaptively allocates the transmit power so as to make the instantaneous signal-to-interference plus noise power ratios (SINRs) of both up and down links identical and maximized. Since it is quite difficult to obtain the optimal solution, we derive an approximate solution. We evaluate, by computer simulation, the distributions of bit error rate (BER) and throughput when using the proposed power allocation. It is shown that the proposed scheme can improve the BER and throughput performances compared to equal power allocation.
KW - Relay network
KW - analog network coding
KW - single-carrier transmission
UR - http://www.scopus.com/inward/record.url?scp=84860639555&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84860639555&partnerID=8YFLogxK
U2 - 10.1109/ICICS.2011.6173585
DO - 10.1109/ICICS.2011.6173585
M3 - Conference contribution
AN - SCOPUS:84860639555
SN - 9781457700309
T3 - ICICS 2011 - 8th International Conference on Information, Communications and Signal Processing
BT - ICICS 2011 - 8th International Conference on Information, Communications and Signal Processing
T2 - 8th International Conference on Information, Communications and Signal Processing, ICICS 2011
Y2 - 13 December 2011 through 16 December 2011
ER -