Cross-Tier Interference Control Through Mode Selection and Resource Allocation (MSRA) in a D2D Network Using Uplink Frequency Reuse

As the cellular mobile communication capacity is increasing every year people are demanding more robust, high speed and secure communication with low power consumption. To fulfill the requirement of the users, technology has been developing in an exponential manner and the data transmission rate and system capacity has been increased manifolds from past years. It is assumed that the population of cellular users will be increased by two fold till 2025. To improve throughput and capacity of cellular network a technology has been introduced in LTE-A which is Device to Device (D2D) communication. D2D is a 4.5G technology which was launched in 3GPP Release 12. The key challenges of D2D communication are controlling of transmission power, discovery of proximity devices, efficient allocation of available resource, and management of interference. Here in this paper we have provided an algorithm for the mode selection and resource allocation (MSRA) using an uplink channel reuse to control the cross-tier interference. The problems have been formulated in mathematical form, which is an NP-complete type problem. To solve such type of problem and reduce computational complexity we have proposed an algorithm. The results have been compared with [8] and a comparative study has been discussed.