A Cooperative System Using an Adaptive Relaying Protocol and Rateless Codes

被引：0

作者：

Chen, Yen-Ming ^{[1
]}

Lo, Hao-Lun ^{[1
]}

Ueng, Yeong-Luh ^{[2
]}

Lee, Huang-Chang ^{[1
]}

机构：

[1] Natl Tsing Hua Univ, Dept Elect Engn, Hsinchu, Taiwan

[2] Natl Tsing Hua Univ, Inst Commun Engn, Dept Elect Engn, Hsinchu, Taiwan

来源：

2013 IEEE 78TH VEHICULAR TECHNOLOGY CONFERENCE (VTC FALL) | 2013年

关键词：

Rateless code; Raptor code; compress-and-forward; cooperative communication; PARITY-CHECK CODES; RAPTOR CODES; CHANNELS; DIVERSITY;

D O I：

暂无

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 full-duplex compress-and-forward (CF) protocol for cooperative communication systems using Raptor codes is first investigated. It is verified that the throughput of the full-duplex CF protocol is superior to that of the full-duplex decode-and-forward (DF) protocol when the relay-to-destination channel has a much higher quality compared to the source-to-relay channel, while the full-duplex DF protocol works more effectively than the full-duplex CF protocol in the reverse situation. A full-duplex adaptive relaying protocol that is devised based on both CF and DF protocols is then proposed. In the proposed protocol, the CF and DF protocols are adaptively switched, depending on the channel conditions of the wireless links. In addition, the throughput of the overall system is enhanced using an outer Raptor code. Simulation results show that the proposed scheme smoothly switches between the two conventional protocols to cope with different channel conditions.

引用

页数：5

共 13 条

[1] On Maximizing Coverage in Gaussian Relay Channels [J].