Vehicle Text Data Compression and Transmission Method Based on Maximum Entropy Neural Network and Optimized Huffman Encoding Algorithms

Table 2

Data compression test results.

SN	Algorithm type	Data acquisition cycle (s)	Compressed transmission data length (kb)	Compression ratio	Transfer time (s)	Transmission error rate	Packet loss rate
1	Original	15	824.56	0.00%	72.66	3.36%	5.52%
2	Original	10	1,478.83	0.00%	142.35	3.84%	5.94%
3	Original	5	2,578.57	0.00%	265.39	3.59%	5.04%
4	Huffman encoding	15	423.22	48.67%	33.37	2.87%	4.54%
5	Huffman encoding	10	752.48	49.12%	75.54	2.79%	4.78%
6	Huffman encoding	5	1,314.65	49.02%	127.88	2.98%	5.17%
7	LZW	15	371.38	54.96%	29.78	2.67%	4.54%
8	LZW	10	653.11	55.84%	67.76	2.61%	4.61%
9	LZW	5	1,156.83	55.14%	112.39	2.80%	4.32%
10	Maximum Entropy NN combined Huffman coding	15	336.43	59.20%	27.76	2.42%	3.35%
11	Maximum Entropy NN combined Huffman coding	10	613.43	58.52%	61.35	2.32%	3.42%
12	Maximum Entropy NN combined Huffman coding	5	1,043.41	59.54%	103.41	2.34%	3.65%