Abstract
Energy harvesting tags with cooperative communication capabilities are recently emerging as a viable infrastructure for internet of things (IoT) applications. This letter studies the cooperative transmission strategy for a network of energy harvesting active networked tags (EnHANTs), that is adapted to the available energy resource and identification request. We consider a network of tags to communicate with the reader either directly or by cooperating with neighboring tags. We formulate the problem as a Markov decision process (MDP). The simulation results are provided to show the performance of the cooperative transmission policy under various energy harvesting scenarios.
Highlights
Cooperative communication and energy harvesting are practical solutions to overcome the battery and communication reliability problems in wireless devices
Energy-harvesting active networked tags (EnHANTs) are recently proposed as tiny devices that can be attached to common place objects [1], [2]
We evaluate the performance of the optimal cooperative transmission policy by considering various energy harvesting scenarios
Summary
Cooperative communication and energy harvesting are practical solutions to overcome the battery and communication reliability problems in wireless devices. An EnHANT-equipped object might lack sufficient energy to respond directly to the reader when the reader is outside the communication range In such a case, to sustain communication, the object can link its information to a neighboring object, in which the neighboring object forwards the information to the reader by using the concept of a relay [4] -- [6]. In [8], the authors studied energy efficient scheduling strategies for wireless sensor networks with energy-harvesting. They considered a case where a node may use either direct transmission or a cooperative relay transmission and formulated the problem using Markov decision process (MDP). We consider a cooperative transmission strategy that optimizes the long-term average throughput by taking into account both the identification request state and energy constrains
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
