TY - GEN
T1 - A power allocation scheme maximizing a discrete capacity function of OFDMA system
AU - Hwang, Sungho
AU - Shin, Sung Moon
AU - Park, Soonchul
AU - Cho, Ho Shin
PY - 2009
Y1 - 2009
N2 - In this paper, we propose an adaptive power allocation method for an orthogonal frequency division multiple access (OFDMA) system that employs an adaptive modulation and coding (AMC) scheme. Unlike the water-filling scheme that has been aimed to maximize a continuous capacity function, the proposed scheme is to maximize a discrete capacity function that more precisely characterizes the discrete AMC levels. In terms of complexity, numerical results show that the proposed scheme reduces the processing time by more than 80% comparing with greedy adaptive power allocation (APA), and shows as same performance as greedy APA.
AB - In this paper, we propose an adaptive power allocation method for an orthogonal frequency division multiple access (OFDMA) system that employs an adaptive modulation and coding (AMC) scheme. Unlike the water-filling scheme that has been aimed to maximize a continuous capacity function, the proposed scheme is to maximize a discrete capacity function that more precisely characterizes the discrete AMC levels. In terms of complexity, numerical results show that the proposed scheme reduces the processing time by more than 80% comparing with greedy adaptive power allocation (APA), and shows as same performance as greedy APA.
UR - http://www.scopus.com/inward/record.url?scp=74549198279&partnerID=8YFLogxK
U2 - 10.1109/ISCIT.2009.5340967
DO - 10.1109/ISCIT.2009.5340967
M3 - Conference contribution
AN - SCOPUS:74549198279
SN - 9781424445219
T3 - 2009 9th International Symposium on Communications and Information Technology, ISCIT 2009
SP - 869
EP - 870
BT - 2009 9th International Symposium on Communications and Information Technology, ISCIT 2009
T2 - 2009 9th International Symposium on Communications and Information Technology, ISCIT 2009
Y2 - 28 September 2009 through 30 September 2009
ER -