Coverage of WCDMA Network Using Different Modulation Techniques with Soft and Hard Decision Decoder

The wideband code division multiple access (WCDMA) based 3G cellular mobile wireless networks are expected to provide a diverse range of multimedia services to mobile users with guaranteed quality of service (QoS). To serve diverse quality of service requirements of these networks it necessitates new radio resource management strategies for effective utilization of network resources with coding schemes. In this paper coverage area for voice traffic and with different modulation techniques, coding schemes and decision decoder are discussed. These discussions are to improve the coverage area in the mobile communication system. This paper is mainly focuses on coverage area of WCDMA system using link budget calculation with different modulation, coding schemes and decision decoder. Simulation results demonstrate coverage extension for voice service with different modulation,coding scheme, soft and hard decision decoder using appropriate Bit error rate (BER) to maintain QoS of the voice.