南京理工大学学报(自然科学版)
南京理工大學學報(自然科學版)
남경리공대학학보(자연과학판)
JOURNAL OF NANJING UNIVERSITY OF SCIENCE AND TECHNOLOGY
2013年
6期
813-817
,共5页
无线传感网络%数据压缩%自适应Huffman编码%Huffman算法
無線傳感網絡%數據壓縮%自適應Huffman編碼%Huffman算法
무선전감망락%수거압축%자괄응Huffman편마%Huffman산법
wireless sensor networks%data compression%adaptive Huffman coding%Huffman algorithm
为压缩传输数据的数据量,提出了一种改进型自适应Huffman编码算法,适用于计算资源受限的无线传感网络节点。选择修剪树自适应Huffman编码算法中提供的来自Porcupines的两组测试数据作为实验数据。在TinyOS提供的TOSSIM上对上述数据进行了模拟测试,算法采用C++语言编程实现。结果显示:与修剪树自适应Huffman编码算法相比较,两者的内存资源使用量相等,但该文算法对两组数据的压缩比分别提高了8%和12%。
為壓縮傳輸數據的數據量,提齣瞭一種改進型自適應Huffman編碼算法,適用于計算資源受限的無線傳感網絡節點。選擇脩剪樹自適應Huffman編碼算法中提供的來自Porcupines的兩組測試數據作為實驗數據。在TinyOS提供的TOSSIM上對上述數據進行瞭模擬測試,算法採用C++語言編程實現。結果顯示:與脩剪樹自適應Huffman編碼算法相比較,兩者的內存資源使用量相等,但該文算法對兩組數據的壓縮比分彆提高瞭8%和12%。
위압축전수수거적수거량,제출료일충개진형자괄응Huffman편마산법,괄용우계산자원수한적무선전감망락절점。선택수전수자괄응Huffman편마산법중제공적래자Porcupines적량조측시수거작위실험수거。재TinyOS제공적TOSSIM상대상술수거진행료모의측시,산법채용C++어언편정실현。결과현시:여수전수자괄응Huffman편마산법상비교,량자적내존자원사용량상등,단해문산법대량조수거적압축비분별제고료8%화12%。
To reduce the transmission data,a modified adaptive Huffman coding algorithm is proposed for the wireless sensor network(WSN)nodes with poor computational resources. Two groups of test data of Porcupines of tailoring adaptive Huffman coding algorithm are selected as the experimental data. Simulation tests of the two groups of data are proposed by using TOSSIM provided by TinyOS, and the algorithm is realized by using C++. The results show:compared with the tailoring adaptive Huffman coding algorithm,both have the same amount of memory usage,but the compression ratios of the two groups of data of the algorithm proposed here are increased by 8% and 12% respectively.