Performance Evaluation of Convolutional Encoders with Different Constraint Rates
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2014, Vol 2, Issue 8
Abstract
This paper is on the performance evaluation of convolutional encoders of different rates with consraint length 7 and viterbi decoders. Shannon’s capacity theory has shown that it is theoretically possible to transmit information over a channel at any rate with an arbitrary small error probability. Path loss and path fading can introduce errors to the signal during propagation, thus channel coding is introduced to overcome these problems. Convolutional codes are non blocking codes that can be designed to either correct or detect errors. The approach adopted in this research was to use information from various technical journals, research data and world-wide user’s experiences to evaluate configurable rate convolutional encoder with Viterbi decoder from a mother code rate 1/2 and a constraint length 7 with other higher rates of 2/3, 3/4 and 5/6 to ascertain their performances. The Convolutional encoders have proved to be a veritable tool for reducing the effects of noisy transmission channels.
Authors and Affiliations
Ekwe. A. O, Iroegbu. C, Okoro. K. C
Keywords
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