Resumo

CARLOS, Egas,; FELIPE, Gil-Castiñeira,  e  CARLOS, Herrera,. Analysis of the Delay in the Transmission of Frame Sequence in Wireless Networks of Linear Sensors Using iACK. Rev Politéc. (Quito) [online]. 2023, vol.52, n.2, pp.69-76. ISSN 2477-8990.  https://doi.org/10.33333/rp.vol52n2.07.

Reliable transmission with low delay and low power are parameters that must be met in the design of multi-hop wireless linear sensor networks that operate with the IEEE 802.15.4 protocol. In order to minimize the processing delay in the node due to the confirmation of the reception of the frame, the implicit confirmation is used instead of the explicit confirmation maintaining the same reliability, which allows minimizing the end-to-end delays in multi-hop networks with linear topology with hundreds of nodes. The delays are mathematically analyzed when a node has to transmit or retransmit frame sequences in linear topologies using an implicit and explicit confirmation, and they are compared with the results obtained in a network prototype built for this purpose. The analysis reveals that the use of implicit confirmation in the transmission of frame sequences in linear topologies decreases the processing delay at the sensor node and the end-to-end delay.

Palavras-chave : sensors; wireless; linear; delay; link.

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