Chunked BATS Codes under Time-invariant and Time-variant Channels

被引：0

作者：

Shiheng, Wang ^{[1
,2
]}

Liu, Heng ^{[1
,2
,3
]}

Ma, Zheng ^{[1
,2
,4
]}

Xiao, Ming ^{[1
,4
]}

机构：

[1] Southwest Jiaotong Univ, Commun & Sensor Network Modern Transportat Int Co, Chengdu 611756, Sichuan, Peoples R China

[2] Southwest Jiaotong Univ, Inst Mobile Commun, Key Lab Informat Coding & Transmiss, Chengdu 611756, Sichuan, Peoples R China

[3] Natl Engn Lab Integrated Transportat Big Data App, Chengdu 611756, Sichuan, Peoples R China

[4] KTH Royal Inst Technol, Stockholm, Sweden

来源：

2022 IEEE 95TH VEHICULAR TECHNOLOGY CONFERENCE (VTC2022-SPRING) | 2022年

关键词：

BATS codes; Chunked outer code; Gaussian elimination decoder; Time-variant channel;

D O I：

10.1109/VTC2022-Spring54318.2022.9860749

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper, a batched sparse(BATS) code transmission scheme based on chunked outer code is proposed. At the source node, a source file is first segmented into K number packets, then all the packets are divided into N chunks, each of which contains the same number of packets except for the last one if K can not be divided by N. The chunks are encoded with the chunked outer code of BATS codes before transmitted to the next node. At the destination node, only the decodable batches need to be decoded to recover the input packets, and undecodable batches are abandoned directly to save the storage resources. In the aspect of the decoding, a simplified decoder is proposed, which is based on Gaussian elimination decoding. The consumed number of batches with a source file successfully transmitted by using the proposed scheme is analyzed under both time-invariant and time-variant channels. The simulation results show that compared with conventional BATS codes, less number of batches are consumed by applying the proposed chunked outer code.

引用

页数：5

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