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arXiv · 2205.00535

A Novel Hybrid Backscatter and Conventional Algorithm for Multi-Hop IoT Networks

Mahmoud Raeisi·Mehdi Mahdavi·Ali Mohammad Doost Hosseini
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Abstract

This paper investigates a multi-hop cognitive radio network in terms of end-to-end bit delivery. The network exploits backscatter communication (BackCom) and harvest-then-transmit (HTT) mode in a hybrid manner. Such a network can be used in internet of things (IoT) applications in which IoT users coexist with a primary network (PN) and use the primary spectrum to transmit data in both BackCom and HTT modes. Besides, such users can harvest energy from the primary signals. A novel hybrid backscatter and conventional transmission (HBCT) algorithm is proposed in order to maximize end-to-end bit delivery by jointly optimizing time and power allocations. For this goal, we formulate a non-convex optimization problem. Next, we transform the problem into a convex one and develop a new analytical formulation by which we calculate the optimal power and time allocation in closed-form equations. The numerical results demonstrate the superiority of HBCT compared with current schemes.

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Mahmoud Raeisi, Mehdi Mahdavi, Ali Mohammad Doost Hosseini. 2022-05-01. A Novel Hybrid Backscatter and Conventional Algorithm for Multi-Hop IoT Networks. https://doi.org/10.1002/ett.4633

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