doctoralThesis
Compensando a perda de eficiência espectral da transferência sem fio de energia por rádio frequência com codificação analógica conjunta fonte-canal
Fecha
2017-06-23Registro en:
HODGSON, Eduardo Alves. Compensando a perda de eficiência espectral da transferência sem fio de energia por rádio frequência com codificação analógica conjunta fonte-canal. 2017. 71 f. Tese (Doutorado em Engenharia Elétrica e Informática Industrial) - Universidade Tecnológica Federal do Paraná, Curitiba, 2017.
Autor
Hodgson, Eduardo Alves
Resumen
We investigate the use of discrete-time analog joint source channel coding (JSCC) in a wireless sensor network (WSN) where the source of information is wirelessly powered by the destination, which does not have energy constraints. Right after harvesting energy from the destination, the source transmits its information using the energy harvested. Wireless energy transfer and information transmission are multiplexed via a time-switching protocol. As a fraction of the time slot is spent for energy transfer, the source samples are saved and compressed using either parametric or non-parametric N:K dimension compression analog JSCC to transmit the information in the remaining fraction of the time slot. We analyze both matched and unmatched source and channel bandwidths. Moreover, we investigate the time-sharing parameter that optimizes the analog system performance and show that the proposed analog scheme can outperform a fully digital system.