UDP-Lite Enhancement Through Checksum Protection

1st Annual Applied Science and Engineering Conference

工业技术;自然科学

Suherman^1 ; Abdurrahman, H.^1 ; Sitompul, O.S.^1 ; Mubarakah, N.^1

Electrical Engineering Department, University of Sumatera Utara, Indonesia^1

关键词: Check sums;    Evaluation results;    Forward error correction codes;    Partial checksum;    UDP-lite;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/180/1/012146/pdf
DOI  :  10.1088/1757-899X/180/1/012146

来源: IOP

【 摘 要 】

UDP drops packet when checksum bits in header does not match the checksum bits calculated from the receive data. UDP-Late improves UDP by using partial checksum coverage. However, checksum error in both UDP and UDP-Lite headers is potentially leading to wrong decision in dropping part(s) of packet. This article proposes protocol to avoid the problem by using Forward Error Correction (FEC) code to protect checksum bits. The evaluation results show that the number of the received bytes increases up to 0.3% compared to UDP-Lite, which leads to 3 dB increment of the received image quality.