Application Layer Hybrid Error Correction with Reed-Solomon Code for DVB Services over Wireless LANs
In this paper, an application layer Hybrid Error Correction scheme with Reed-Solomon (HEC-RS) code is proposed to satisfy the very low Packet Loss Ratio (PLR) requirement under a strict latency limit for DVB services over wireless LANs. The PLR performance of the HEC-RS scheme is analyzed and compared with the HEC scheme based on the Packet Repetition (HEC-PR) technique and an Adaptive Forward Error Correction (AFEC) scheme based on RS codes. It is found that the needed Redundancy Information (RI) of the HEC-RS scheme is much less than that of the AFEC scheme. However, if the group size and link PLR are small enough, the needed RI of the HEC-RS scheme is proven to be much more than that of the HEC-PR scheme. As a result, the optimum performance can be achieved when combining the HEC-PR and the HEC-RS scheme.
Hybrid Error Correction RS code DVB WLANs
Guoping Tan Thorsten Herfet
NCRL,Southeast University & Saarland University Nanjing,China & Saarbruecken, Germany Saarland University Saarbruecken, Germany
国际会议
上海
英文
2007-09-21（万方平台首次上网日期，不代表论文的发表时间）