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Successive Cancellation Decoding of Polar Codes : Channel Synthesis and Decomposition  

Lee, Moon-Ho (Chonbuk National University)
Li, Jun (Chonbuk National University)
Park, Ju-Yong (Shingyeong University)
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Abstract
In this paper, we verify the channel synthesis and decomposition of polar codes using successive cancellation decoding algorithm over binary discrete memoryless symmetric channel by modifying Arikan's algebraic formular on encoding and decoding of polar codes. In addition, we found that information bits are sent by efficiently consisting of polar codes with their size $2^n$ through polarizing matrix ${G_2}^{{\otimes}n}$ over binary discrete memoryless symmetric channel W. Expecially, if $N{\geq}2$, the complexity of Arikan's encoding and decoding for polar codes is O($Nlog_2N$). Furthermore, we found that polar codes are one of the solution to the challenging problems for the multipoint communication.
Keywords
successive cancellation; channel synthesis; channel decomposition; Polar code;
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