An H-ARQ transmission scheme based on rateless code

被引：0
|
作者：
Wang, Yin [1 ]
Lei, Weijia [1 ]
Xie, Xianzhong [1 ]
机构：
[1] Chongqing Univ Posts & Telecommun, Inst Personal Commun, Chongqing, Peoples R China
来源：
2013 SIXTH INTERNATIONAL SYMPOSIUM ON COMPUTATIONAL INTELLIGENCE AND DESIGN (ISCID), VOL 2 | 2013年
关键词：
rateless code; H-ARQ; error-erasure code; error-correction code;
D O I：
10.1109/ISCID.2013.164
中图分类号：
TP18 [人工智能理论];
学科分类号：
081104 ; 0812 ; 0835 ; 1405 ;
摘要：
In the traditional cross-layer redundancy optimization allocation, the system can't fully adapt the time-varying channel, so an H-ARQ transmission mechanism based on rateless code is proposed in this paper. The source uses LT-code as error-erasure code to encode the original packets in the packet-level, every bit of one coded packets is encoded by using LT-code as error-correction code in physical layer. The Receiver can set an upper limit value of the received bits to control decoding overhead, it sends a feedback to the source when the receiver decodes all the bits of a coded packet successfully, and otherwise it will discard the coded packet and send a feedback. Simulation results show that our mechanism improves the transmission efficiency greatly comparing to the mechanism with constant rate for coding transmission.
引用
收藏
页码：201 / 204
页数：4
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