Channel-State Based Scheduling in Wireless Sensor Networks for Reliable Transmission
IPDPS '05 Proceedings of the 19th IEEE International Parallel and Distributed Processing Symposium (IPDPS'05) - Workshop 12 - Volume 13
Dynamic power control in a fading downlink channel subject to an energy constraint
Queueing Systems: Theory and Applications
IEEE Transactions on Computers
A calculus approach to energy-efficient data transmission with quality-of-service constraints
IEEE/ACM Transactions on Networking (TON)
Power-aware scheduling for makespan and flow
Journal of Scheduling
Energy-efficient scheduling of delay constrained traffic over fading channels
IEEE Transactions on Wireless Communications
End-to-end energy-bandwidth tradeoff in multihop wireless networks
IEEE Transactions on Information Theory
On the delay-energy tradeoff in multiuser fading channels
EURASIP Journal on Wireless Communications and Networking
Optimal scheduling in interference limited fading wireless networks
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
IEEE/ACM Transactions on Networking (TON)
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Energy-efficient scheduling for multiple access in wireless sensor networks: A job scheduling method
Computer Networks: The International Journal of Computer and Telecommunications Networking
On the energy-bandwidth tradeoff for AWGN relay channels
MILCOM'09 Proceedings of the 28th IEEE conference on Military communications
On the broadcast capacity of wireless networks with cooperative relays
IEEE Transactions on Information Theory
Delay-minimal transmission for average power constrained multi-access communications
IEEE Transactions on Wireless Communications
DCOSS'06 Proceedings of the Second IEEE international conference on Distributed Computing in Sensor Systems
Wireless MIMO Sensor Network with Power Constraint WLS/BLUE Estimators
Wireless Personal Communications: An International Journal
Real-time redundancy allocation for time-varying underwater acoustic channels
Proceedings of the Seventh ACM International Conference on Underwater Networks and Systems
Energy efficient transmission scheduling for non-stationary underwater acoustic channels
Proceedings of the Eighth ACM International Conference on Underwater Networks and Systems
| Hi-index | 754.96 |
This paper investigates the problem of energy-efficient transmission of data packets in a wireless network by jointly adapting to backlog and channel condition. Specifically, we consider minimum-energy scheduling problems over multiple-access channels, broadcast channels, and channels with fading, when packets of all users need to be transmitted before a deadline T. Earlier work has considered a similar setup and demonstrated significant transmission energy saving by adapting to backlog for channels that are time invariant and when transmission is restricted to time-division. For concreteness, throughout the paper, rates and powers corresponding to optimal coding over discrete-time additive white Gaussian noise (AWGN) channels are assumed. The results, however, hold for more general channels and coding schemes where the total transmitted power is convex in the transmission rates. The offline scheduling problems for all the channels considered are shown to reduce to convex optimization problems with linear constraints. An iterative algorithm, referred to as FlowRight, that finds optimal offline schedules is presented. A heuristic online algorithm that we call look-ahead water-filling, which jointly adapts to both channel fading state and backlog is described. By the use of a small buffer which introduces an almost fixed delay, this algorithm achieves a considerable reduction in energy relative to water filling solely on channel states.