Name
Abstract | ||
|---|---|---|
In a system with energy harvesting (EH) nodes, the design focus shifts from minimizing energy consumption by infrequently transmitting less information to making the best use of available energy to efficiently deliver data while adhering to the fundamental energy neutrality constraint. We address the problem of maximizing the throughput of a system consisting of rate-adaptive EH nodes that transmit to a destination. Unlike related literature, we focus on the practically important discrete-rate adaptation model. First, for a single EH node, we propose a discrete-rate adaptation rule and prove its optimality for a general class of stationary and ergodic EH and fading processes. We then study a general system with multiple EH nodes in which one is opportunistically selected to transmit. We first derive a novel and throughput-optimal joint selection and rate adaptation rule (TOJSRA) when the nodes are subject to a weaker average power constraint. We then propose a novel rule for a multi-EH node system that is based on TOJSRA, and we prove its optimality for stationary and ergodic EH and fading processes. We also model the various energy overheads of the EH nodes and characterize their effect on the adaptation policy and the system throughput. |
Year | DOI | Venue |
|---|---|---|
2015 | 10.1109/TWC.2014.2337296 | Wireless Communications, IEEE Transactions |
Keywords | Field | DocType |
energy harvesting,fading channels,tojsra,discrete-rate adaptation rule,energy consumption,energy harvesting wireless systems,fundamental energy neutrality constraint,multi eh node system,novel throughput-optimal joint selection and rate adaptation rule,rate-adaptive eh nodes,energy neutrality,opportunistic selection,power constraint,rate adaptation,wireless communication,bit error rate,throughput | Mathematical optimization,Telecommunications,Wireless,Fading,Ergodic theory,Computer network,Energy harvesting,Throughput,Available energy,Energy consumption,Mathematics,Bit error rate | Journal |
Volume | Issue | ISSN |
14 | 1 | 1536-1276 |
Citations | PageRank | References |
4 | 0.41 | 32 |
Authors | ||
2 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Parag S. Khairnar | 1 | 14 | 1.40 |
| Neelesh B. Mehta | 2 | 979 | 82.27 |