A Lossless Compression Approach Based on Delta Encoding and T-RLE in WSNs

Table 2

Dispersion measurement.

Dataset	Original data			Delta encoding
	Mean	Variance	Standard deviation	Mean	Variance	Standard deviation
LU_84 Temp	7.21445	10.00894	3.16369	0.00009	0.00381	0.06174
FN_101 Temp	14.92182	15.02011	3.87558	0.00108	0.07598	0.27564
LG_20 Temp	4.09063	16.37425	4.04651	0.00024	0.11180	0.33437
GSB_10 Temp	4.34265	15.62750	3.95316	-0.00019	0.04547	0.21323
LU_84 Hum	87.0403	64.6389	8.0398	0.00115	0.36820	0.60680
FN_101 Hum	83.94107	95.86922	9.79128	0.00592	2.28435	1.51141
LG_20 Hum	69.71255	377.71902	19.43499	0.00419	8.08112	2.84273
GSB_10 Hum	68.16569	330.42367	18.17756	0.00331	3.12383	1.76744