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http://dx.doi.org/10.5515/KJKIEES.2009.20.9.835

A New Upper Layer Decoding Algorithm for a Hybrid Satellite and Terrestrial Delivery System  

Kim, Min-Hyuk (Department of Radio Communication Engineering, Korea Maritime University)
Park, Tae-Doo (Department of Radio Communication Engineering, Korea Maritime University)
Kim, Nam-Soo (Department of Radio Communication Engineering, Korea Maritime University)
Kim, Chul-Seung (Department of Radio Communication Engineering, Korea Maritime University)
Jung, Ji-Won (Department of Radio Communication Engineering, Korea Maritime University)
Chun, Seung-Young (Agency for Defense Development)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.20, no.9, 2009 , pp. 835-842 More about this Journal
Abstract
DVB-SSP is a new broadcasting system for hybrid satellite communications, which supports mobile handheld systems and fixed terrestrial systems. However, a critical factor must be considered in upper layer decoding which including erasure Reed-Solomon error correction combined with cyclic redundancy check. If there is only one bit error in an IP packet, the entire IP packet is considered as unreliable bytes, even if it contains correct bytes. IF, for example, there is one real byte error, in an If packet of 512 bytes, 511 correct bytes are erased from the frame. Therefore, this paper proposed two kinds of upper layer decoding methods; LLR-based decoding and hybrid decoding. By means of simulation we show that the performance of the proposed decoding algorithm is superior to that of the conventional one.
Keywords
DVB-SSP; RS Code(Reed-Solomon Code); LDPC Code; MPE-FEC; Cyclic Redundancy Check(CRC);
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  • Reference
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