TY - GEN
T1 - QoS-constrained energy minimization in multiuser multicarrier systems
AU - Bai, Qing
AU - Ivrlac, Michel T.
AU - Nossek, Josef A.
PY - 2009
Y1 - 2009
N2 - In this paper the QoS-constrained resource allocation problem in multicarrier systems is considered. Within the established cross-layer framework, parameters for subchannel assignment, adaptive modulation and coding, and ARQ/HARQ protocols are jointly optimized. Instead of the conventional transmit power minimization, the total energy consumption for the successful transmissions of all information bits is set as the optimization goal. The nonconvex primal problem is solved by using Lagrange dual decomposition and the ellipsoid method. Numerical results indicate that the recovered primal solution is well acceptable in performance, and efficient in terms of computational effort.
AB - In this paper the QoS-constrained resource allocation problem in multicarrier systems is considered. Within the established cross-layer framework, parameters for subchannel assignment, adaptive modulation and coding, and ARQ/HARQ protocols are jointly optimized. Instead of the conventional transmit power minimization, the total energy consumption for the successful transmissions of all information bits is set as the optimization goal. The nonconvex primal problem is solved by using Lagrange dual decomposition and the ellipsoid method. Numerical results indicate that the recovered primal solution is well acceptable in performance, and efficient in terms of computational effort.
KW - Cross-layer optimization
KW - Energy minimization
KW - Multicarrier systems
KW - Resource allocation
UR - http://www.scopus.com/inward/record.url?scp=84885883532&partnerID=8YFLogxK
U2 - 10.1007/978-3-642-03819-8_18
DO - 10.1007/978-3-642-03819-8_18
M3 - Conference contribution
AN - SCOPUS:84885883532
SN - 3642038182
SN - 9783642038181
T3 - Lecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering
SP - 185
EP - 195
BT - Mobile Lightweight Wireless Systems - First International ICST Conference, MOBILIGHT 2009, Revised Selected Papers
T2 - 1st International Conference on Mobile Lightweight Systems, MOBILIGHT 2009
Y2 - 18 May 2009 through 20 May 2009
ER -
