TY - GEN
T1 - Joint Allocation of Subcarriers and Transmit Powers in a Multiuser OFDM Cellular Network
AU - Thanabalasingham, Thaya
AU - Hanly, Stephen
AU - Andrew, Lachlan L. H.
AU - Papandriopoulos, John
PY - 2006
Y1 - 2006
N2 - In the present paper, we consider the problem of joint bandwidth (subcarriers) and power allocation for the downlink of a multi-user multi-cell OFDM cellular network. This resource allocation problem is formulated as a power minimization problem, subject to meeting the target rates of all users in the network. We develop a distributed solution to find the globally optimal allocation which determines the subcarrier and power allocation dynamically. In addition, we investigate the impact of reducing the complexity by reducing the number of degrees of freedom available in the optimization. In particular, we consider a static bandwidth allocation scheme, and a static power allocation scheme. The numerical results show that the penalty on network performance due to the reduction in the available degrees of freedom is not significant.
AB - In the present paper, we consider the problem of joint bandwidth (subcarriers) and power allocation for the downlink of a multi-user multi-cell OFDM cellular network. This resource allocation problem is formulated as a power minimization problem, subject to meeting the target rates of all users in the network. We develop a distributed solution to find the globally optimal allocation which determines the subcarrier and power allocation dynamically. In addition, we investigate the impact of reducing the complexity by reducing the number of degrees of freedom available in the optimization. In particular, we consider a static bandwidth allocation scheme, and a static power allocation scheme. The numerical results show that the penalty on network performance due to the reduction in the available degrees of freedom is not significant.
U2 - 10.1109/ICC.2006.254739
DO - 10.1109/ICC.2006.254739
M3 - Conference proceeding contribution
SN - 1424403545
VL - 1
T3 - IEEE International Conference on Communications
SP - 269
EP - 274
BT - 2006 IEEE International Conference on Communications, Vols 1-12
PB - Institute of Electrical and Electronics Engineers (IEEE)
CY - Piscataway, NJ
ER -