For any process j that i sent l a s t i [i] to, i added a pending ack in a c k_s e t i (line 28).
In one cooperative data frame, each source intends to send L codewords, and the system works in mode 1.
Moreover, (overline {mathrm {E}}_{text {total}}) is the average energy consumed by BS, RN and UE to send L bits.
Third, node i sends packets in L from head to tail to node j.
The time required by the base station node sending L message and start message to the nodes is up to (2+1)×7=21 ms. The time needed for the host running the reconstruction algorithm is less than 1 ms. In total, once estimation of the location of the target needs up to 160+21+1=182 ms≈0.2 s.
We assume in each round of data collection, every cluster member sends l-bits of data to its cluster head, and then, the energy consumed by a CH in one round of data gathering can be represented by E_{text{ch}}=frac{N}{k}*l*E_{text{elec}}+frac{N}{k}*l*E_{text{DA}}+l*varepsilon_{text{fs}}*d^{4}_{text{BS}} (4).
I send L. a photograph of the corpse flower.
To transmit a l-bit message a distance d using the radio model, the radio expends E send = l E elec + l ϵ fs d 2 d ≺ d 0 l E elec + l ϵ m p d 2 d ≻ d 0 (1).
Specially, PT i,i=1,2 sends signals on subcarrier l in SC set Ω i.
The back-end database sends B L to the reader, where B L is a left half of B. The reader forwards B L to the tag. .
Then, the back-end database authenticates the tag by matching the received value B R. The back-end database sends B L to the reader, where B L is a left half of B. The reader forwards B L to the tag.
