TY - GEN
T1 - Energy-efficient multi-user resource management with IR-HARQ
AU - Wu, Ye
AU - Xu, Shugong
PY - 2012
Y1 - 2012
N2 - A general energy-efficient multi-user management framework for incremental redundancy (IR) HARQ is proposed. We first develop a basic tradeoff between energy efficiency, power, bandwidth and delay of IR-HARQ, which reveals that frequency domain, rather than power domain, offers a larger space for exploiting energy efficiency with delay constraints. Based on the basic tradeoff, the proposed energy-efficient multi-user management framework, consisting of user scheduling and power/bandwidth allocation, optimizes energy efficiency (EE) in both power and frequency domain. It is shown that while achieving EE, power-domain optimization is more effective and provide higher throughput for large-bandwidth scenarios, and frequency-domain optimization produces shorter delay in small bandwidth scenarios.
AB - A general energy-efficient multi-user management framework for incremental redundancy (IR) HARQ is proposed. We first develop a basic tradeoff between energy efficiency, power, bandwidth and delay of IR-HARQ, which reveals that frequency domain, rather than power domain, offers a larger space for exploiting energy efficiency with delay constraints. Based on the basic tradeoff, the proposed energy-efficient multi-user management framework, consisting of user scheduling and power/bandwidth allocation, optimizes energy efficiency (EE) in both power and frequency domain. It is shown that while achieving EE, power-domain optimization is more effective and provide higher throughput for large-bandwidth scenarios, and frequency-domain optimization produces shorter delay in small bandwidth scenarios.
UR - http://www.scopus.com/inward/record.url?scp=84864976151&partnerID=8YFLogxK
U2 - 10.1109/VETECS.2012.6240335
DO - 10.1109/VETECS.2012.6240335
M3 - Conference Proceeding
AN - SCOPUS:84864976151
SN - 9781467309905
T3 - IEEE Vehicular Technology Conference
BT - IEEE 75th Vehicular Technology Conference, VTC Spring 2012 - Proceedings
T2 - IEEE 75th Vehicular Technology Conference, VTC Spring 2012
Y2 - 6 May 2012 through 9 June 2012
ER -