Abstract
The wide-band code division multiple access (WCDMA) based 3G and beyond 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. Call admission control (CAC) is a significant component in wireless networks to guarantee quality of service requirements and also to enhance the network resilience. In this paper capacity enhancement for WCDMA network with convolutional coding scheme is discussed and compared with block code and without coding scheme to achieve a better balance between resource utilization and quality of service provisioning. The model of this network is valid for the real-time (RT) and non-real-time (NRT) services having different data rate. Simulation results demonstrate the effectiveness of the network using convolutional code in terms of capacity enhancement and QoS of the voice and video services.
Highlights
Third generation wireless communication systems are designed for multimedia services such as audio, video and data communication with enhanced high data rates
Call admission control (CAC) is one of the radio resource management (RRM) process of making a decision for a new call admission taking into account the amount of available resource and users quality of service (QoS) requirements [5]
In this paper a quality of service based capacity enhancement for wideband code division multiple access (WCDMA) networks is designed for different services by fixing thresholds to each service according to their utilization with convolutional coding scheme by selecting suitable Eb/No value with respect bit error rate (BER) to maintain the quality of service
Summary
Third generation wireless communication systems are designed for multimedia services such as audio, video and data communication with enhanced high data rates. This will create new opportunities for manufacturers and operators, and for the service providers of such applications using these networks. CAC is one of the radio resource management (RRM) process of making a decision for a new call admission taking into account the amount of available resource and users QoS requirements [5]. Network must make sure that it has sufficient bandwidth to allocate to the user It must determine if, after admitting the user, it can continue to provide the same QoS for all existing connections. Instantaneous values for the cell load range from 0 to 1
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