A Fast Encoding of 3GPP MBMS Raptor Codes Based on Operation Instruction

In this letter, we propose an efficient encoding scheme for 3GPP Raptor codes. When encoding numerous information blocks with the same size, conventional encoder is similar to matrix multiplication in the first stage of the encoding. The main idea of the proposed method is to utilize the potential r...

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Bibliographic Details
Published inIEEE communications letters Vol. 24; no. 1; pp. 3 - 6
Main Authors He, Liang, Lai, Ke, Lei, Jing, Huang, Ying
Format Journal Article
LanguageEnglish
Published New York IEEE 01.01.2020
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
3GPP
Coders
Digital video broadcasting
Encoding
Fountain codes
Indexes
Mathematical model
MBMS
Multiplication
raptor codes
Redundancy
Systematics
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Summary:In this letter, we propose an efficient encoding scheme for 3GPP Raptor codes. When encoding numerous information blocks with the same size, conventional encoder is similar to matrix multiplication in the first stage of the encoding. The main idea of the proposed method is to utilize the potential redundancy in the multiplication. A series of ordered operation instructions, stored in a variable called Index, are established to achieve the goal. To construct Index, two schemes are introduced in this letter. Analysis demonstrates that the proposed schemes have less complexity than the conventional one. Furthermore, the simulation results show that both of them take less than 1/3 the encoding time of the original method.
ISSN:1089-7798
1558-2558
DOI:10.1109/LCOMM.2019.2946355