In the technological advanced world, technology keeps on changing now and then. In mobile communication technology, everyone is familiar with 4G communication technique, the future of mobile communication and IOT technology is 5G communication. The techniques used in 4G communication is not suitable for 5G communication because, to meet two criteria speed and error free communication at higher speeds than 4G communication. This paper discusses briefly about the techniques for encoding and comparison of polar code decoders. For polar code encoding, Arikan transform is used and for decoding of polar codes, three different techniques are used, they are SC decoding technique, ASCL decoding technique, Adaptive Decoder technique

Keywords : Successive Cancellation (SC), Adaptive Successive Cancellation List (ASCL),