Evaluation of a Model to Enhance Resource Allocated to Device-to-Device Communication in OFDM- based Cellular Systems – Resource Capacity Analysis



Device-to-device (D2D) communication has been a hot topic due to its potential advantages such as high data rates, spectrum-efficient, energy-efficient. D2D communication has the advantage of maximum spectral usage and higher throughput. However, for better quality of service (QoS), the performance of the existing systems can be improved by introducing the idea of device- to-device (D2D) communication in cellular networks. This can be achieved by increasing system capacity to accommodate more user equipment (UEs). This paper evaluates the Model to Enhance Resource Allocated to Device-to-Device Communication in OFDM- based Cellular Systems to improve the QoS for the UEs by considering the system capacity in different D2D communication scenarios in OFDM technology. The system capacity is calculated, and throughput in ideal and realistic conditions by using Shannon’s equation for capacity calculation. The control and discovery overhead is also considered. The results shows that the scenarios largely improve the system capacity compared with other studies thus QoS is improved.


QoS, system capacity, cellular network, D2D communication, performance comparison, control overhead.


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