BER Analysis of Coherent and Non-Coherent GMSK over Coding Techniques for Cellular systems in Next Generation Communications

Abstract

The Gaussian Minimum Shift Keying (GMSK) is the most prominent effective modulation used in current wireless communications has seen tremendous growth from the recent years. Due to these advancements, the communicating speeds also reached gigabit rate per second. Despite of the technological development it also brings some major challenges due to the random behavior of the wireless environment. In particular, the error rate performance severely decays with the fading characteristics of the wireless channel. Forward error correction plays a key role to detect and correct the transmission errors. Hence, there is a need to study the performance of these systems under various network conditions. In this article, the Bit Error Rate (BER) analysis of the wireless scheme has been carried out using RS and BCH codes. Adaptive modulation techniques like MSK and GMSK have been used for simulation analysis. It is revealed that RS coded GMSK modulation performs well under burst error channels and BCH codes are able to provide better error correction capability under shift keying modulations. The comparison has been done to highlight the importance of these codes under erroneous wireless channel conditions.