Decode and forward polar coding for Half-duplex two-relay channels based on multilevel construction

Autor: Saqib Ejaz, Tamer H. M. Soliman, Fengfan Yang
Rok vydání: 2016
Předmět:
Zdroj: International Journal of Electronics. 104:539-554
ISSN: 1362-3060
0020-7217
DOI: 10.1080/00207217.2016.1218068
Popis: Polar codes represent an emerging class of error-correcting codes with power to approach the capacity of the physically degraded relay channel and relevant coding schemes have been proposed in the literature. This paper aims to design new cooperative decode-and-forward (DF) polar coding schemes for half-duplex two-relay channel based on the Plotkin’s construction illustrating their performances gain. In these schemes, we consider the use of time-division process in transmission. The source node transmits its polar-coded information to both relays and the destination nodes during the first time slot. Each relay node receives the data from the source and processes it using the DF protocol. For the second transmission period, each relay first decodes the source signal then after reconstruction of the information reduction matrix based on the multilevel characteristics of polar codes, the extracted data at each relay are recoded using another polar code and transmitted to the destination. At destinati...
Databáze: OpenAIRE