Table 4.

The number of nodes for $k=1$ coverage: “# nodes” means “the number of nodes required”.

	$\mathit{\lambda }=0.05$				$\mathit{\lambda }=0.08$
	$\mathit{k}$-Threshold [7]		Our $\mathit{k}$-Layer		$\mathit{k}$-Threshold [7]		Our $\mathit{k}$-Layer
${\mathit{p}}_{\mathrm{th}}$	${\mathit{r}}_{\mathrm{th}}$	# nodes	${\mathit{r}}_{\mathbf{1}}$	# nodes	${\mathit{r}}_{\mathrm{th}}$	# nodes	${\mathit{r}}_{\mathbf{1}}$	# nodes
0.7	7.133	7790	15.685	1672	4.458	19,781	9.803	4200
0.8	4.462	19,781	12.391	2640	2.789	50,369	7.744	6688
0.9	2.107	87,768	8.749	5226	1.317	223,520	5.468	13,161