TY - GEN
T1 - On energy efficient cross-layer assisted resource allocation in multiuser multicarrier systems
AU - Bai, Qing
AU - Nossek, Josef A.
PY - 2009
Y1 - 2009
N2 - In this paper the quality of service (QoS) constrained radio resource allocation problem at the downlink of a multiuser multicarrier system is investigated. We demonstrate and analyze the trade-off between energy consumption and transmit power within a cross physical and link layer system model, which jointly considers power allocation, adaptive modulation and coding and ARQ/HARQ retransmission protocols. A novel transmit power constrained energy minimization problem is formulated based on the competing nature of the two resources. Due to the combinatorial property of the problem, a suboptimal heuristic resource allocation algorithm is proposed, the accuracy of which is compared with the dual optimal value obtained as a byproduct of the algorithm. Simulation results also provide performance comparisons on ARQ and HARQ protocols, and their different impacts on the choice of the optimal modes of operations.
AB - In this paper the quality of service (QoS) constrained radio resource allocation problem at the downlink of a multiuser multicarrier system is investigated. We demonstrate and analyze the trade-off between energy consumption and transmit power within a cross physical and link layer system model, which jointly considers power allocation, adaptive modulation and coding and ARQ/HARQ retransmission protocols. A novel transmit power constrained energy minimization problem is formulated based on the competing nature of the two resources. Due to the combinatorial property of the problem, a suboptimal heuristic resource allocation algorithm is proposed, the accuracy of which is compared with the dual optimal value obtained as a byproduct of the algorithm. Simulation results also provide performance comparisons on ARQ and HARQ protocols, and their different impacts on the choice of the optimal modes of operations.
UR - http://www.scopus.com/inward/record.url?scp=77952809700&partnerID=8YFLogxK
U2 - 10.1109/PIMRC.2009.5449908
DO - 10.1109/PIMRC.2009.5449908
M3 - Conference contribution
AN - SCOPUS:77952809700
SN - 9781424451234
T3 - IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC
SP - 2603
EP - 2607
BT - 2009 IEEE 20th Personal, Indoor and Mobile Radio Communications Symposium, PIMRC 2009
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2009 IEEE 20th Personal, Indoor and Mobile Radio Communications Symposium, PIMRC 2009
Y2 - 13 September 2009 through 16 September 2009
ER -
