Investigating communications energy efficiency tradeoff between UAV users and small-cell users
Hashemi, Ramin; Mili, Mohammad Robat; Ali, Samad; Beyranvand, Hamzeh; Latva-aho, Matti (2021-10-22)
R. Hashemi, M. R. Mili, S. Ali, H. Beyranvand and M. Latva-Aho, "Investigating Communications Energy Efficiency Tradeoff Between UAV Users and Small-cell Users," 2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC), 2021, pp. 342-347, doi: 10.1109/PIMRC50174.2021.9569546
© 2021 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
https://rightsstatements.org/vocab/InC/1.0/
https://urn.fi/URN:NBN:fi-fe2022012610362
Tiivistelmä
Abstract
In this paper, a novel method is proposed to study the tradeoff between energy efficiency (EE) of small-cell users and unmanned aerial vehicles (UAV) users in multi-cell orthogonal frequency division multiple access (OFDMA)-based networks. Contrary to the prior works that only maximize the EE of the UAV network subject to some constraints on transmit power of UAV users, we formulate a multi-objective optimization problem (MOOP) that jointly maximize the EE of small-cell and UAV users while guaranteeing the minimum rate for UAV users as well as maximum transmit powers for the corresponding small-cell and UAV BSs. The proposed MOOP is transformed into a single optimization problem (SOOP) by the weighted Tchebycheff approach. Then, an iterative technique is used to optimize alternatively subchannels and transmission powers of small-cell and UAV networks at each step. Numerical results show that a substantial performance gain can be obtained over the existing solutions.
Kokoelmat
- Avoin saatavuus [37744]