Literature Database Entry

torres-gomez2022power


Jorge Torres Gómez, Maximo Morales-Céspedes, Musbah Shaat, Ana I. Pérez Neira and Ana García Armada, "Power and Bandwidth Allocation based on Age of Information metrics in Satellite Uplink Channels," Proceedings of 21st IEEE Mediterranean Electrotechnical Conference (MELECON 2022), Palermo, Italy, June 2022.


Abstract

Communication links over satellites allow interconnecting very distant regions to provide service where the terrestrial networks are limited. In this scenario, it is of major importance to devise mechanisms accounting for the improved freshness of packets given the impact of large distances. Their analysis is particularly important when considering the deployment of sensors in remote areas, where satellite links may introduce a high delay in the communication system. In this respect, we report the use of age of information (AoI) metrics to evaluate users’ allocation mechanisms. We use power-domain non-orthogonal multiple access (NOMA) as an alternative to orthogonal multiple access (OMA) to optimally reduce the age of received packets. We derive the proper formulation to account for a fairness condition when pairing users accounting for both; the user’s needs to transmit information and the allowable link rate. Comparative results are provided by numerically evaluating the solution for NOMA and OMA accounting for the peak age of information (PAoI) metric. We show that the resource allocation mechanisms in NOMA results in less PAoI (40%) compared to OMA. We remark this result through extensive numerical simulations based on actual uplink satellite communication links accounting for 500 users.

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Jorge Torres Gómez
Maximo Morales-Céspedes
Musbah Shaat
Ana I. Pérez Neira
Ana García Armada

BibTeX reference

@inproceedings{torres-gomez2022power,
    author = {Torres G{\'{o}}mez, Jorge and Morales-C{\'{e}}spedes, Maximo and Shaat, Musbah and P{\'{e}}rez Neira, Ana I. and Armada, Ana Garc{\'{i}}a},
    title = {{Power and Bandwidth Allocation based on Age of Information metrics in Satellite Uplink Channels}},
    publisher = {IEEE},
    address = {Palermo, Italy},
    booktitle = {21st IEEE Mediterranean Electrotechnical Conference (MELECON 2022)},
    month = {6},
    year = {2022},
   }
   
   

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