Performance investigation of polar codes employing polar encoder and successive cancellation decoder in 5G systems and cloud computing

Abstract

Information encompasses broad spectrum of data in terms voice, images, sensor and software generated data. Digital computer communication techniques are popular for transmission of information in present days in global scenarios. This is due to the fact that the quality of perception user is bestowed at the receiving end. Channel coding and decoding are important units of these digital computer communication systems. Coding in general and channel coding in particular will ensure secure and reliable communication with the onset of ongoing cyber threats in digital world. Future wireless systems like 5G systems are expected to enhance speed of communication as compared to predeccessor technologies. It demands high performance codes having less complexity of hardware associated with encoder and decoders. These systems operate in exceptionally reliable scenarios, better efficiency for short and long messages, high throughput, low Bit error rate and high code rates. Polar Codes are having capacities of achieving forward error correction which are realized with low complex encoder and decoders. In this work main focus is on development of successive cancellation decoder using G2 to G512 transforms and reliability sequences of 5G systems used in cloud computing paradigm. In order to minimize the Bit error rate at reduced SNR one has to deploy polar codes. Key area of research in polar code is development of decoder part. Successive cancellation decoder is most popularly used because of its reduced complexity and better efficiency for various code lengths. Bit Error Rate(BER) for turbo code is 10⁻² at 3dB whereas, polar code documents BER of 10⁻⁵at 3dB in present work.