Abstract
Device-to-device (D2D) is a close-range data transmission technique where users directly communicate with each other bypassing the base stations (BSs). D2D networks have been envisioned to coexist with cellular networks in an underlay manner. However, analyzing performance of D2D underlay cellular networks is non-trivial. In this paper, we quantify the average achievable throughput metric for a realistic network where D2D pairs are located based on a Poisson point process (PPP) and experience Rician fading. We derive closed-form results of average achievable throughput in D2D communication for a practical case with path loss exponent of 4. This paper provides a tractable framework to understand the performance of D2D underlay cellular networks, which may be used in a wide range of endeavors related to power control, mode selection and resource allocation in D2D underlay cellular networks.
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