Optimized data transmission using cooperative devices in clustered D2D communication

A fundamental challenge in Device-to-Device Communication (D2D) is that the quality of radio links is subject to high transmission power with high channel impairments. This channel impairment leads to higher error rates and temporary path losses that result in the retransmission of data frames and ultimately limits the efficiency of wireless networks. With such constraints, it is difficult to design an algorithm which has the ability to maximize the reliable communication in D2D. Keeping in view this intriguing aspect of D2D communication, we have proposed an optimal data aggregation frame technique. This ensures reliable data delivery from different D2D to their cluster heads using cooperative devices which includes, a) selection of a cooperative device that ensures reliable data delivery at the cluster head and b) optimized data transmission depends on i) packet loss rate, ii) link utilization, and iii) number of retransmissions. Analyses show that optimized frame technique outperforms automatic repeat request ARQ protocols in terms of link utilization, frame loss rate, energy consumption, network efficiency and end-to-end delay in D2D communication.