Decomposed LT Codes for Cooperative Communications
| Autor: | Hongyu Wang, Fanglin Niu, Kaiyan Zhu, Fengjiao Jiang |
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| Rok vydání: | 2014 |
| Předmět: |
Computer Networks and Communications
Computer science Network packet Real-time computing Data_CODINGANDINFORMATIONTHEORY Communications system Luby transform code Hardware and Architecture Fountain code Erasure Electrical and Electronic Engineering Latency (engineering) Algorithm Single layer Decoding methods |
| Zdroj: | International Journal of Wireless Information Networks. 21:317-324 |
| ISSN: | 1572-8129 1068-9605 |
| Popis: | In order to reduce computation complexity and latency in cooperative communication system based on fountain code, a decomposed LT codes (DLT) based cooperative transmission scheme was proposed. The scheme comprises of two layers of random encoding but only a single layer of decoding. A general decomposition technique for the decomposed LT codes construction is developed. The transmission latency for the proposed scheme was analyzed. Simulation results show that the total time consumed under the proposed scheme can be significantly reduced compared to direct transmission and conventional cooperative transmission based on LT codes in the medium to high packet erasure rate regimes. Moreover, With the increase of packet erasure rate, the advantage of the proposed scheme is more evident. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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