Abstract
The third generation partnership project (3GPP) initiative to integrate device-to-device (D2D) communication within the cellular networks is premised on the high spectral efficiency gains during spectrum sharing and user quality of service (QoS) guarantees. However, the intra-cell interference between D2D and cellular users during spectrum sharing must be controlled to realize these gains in the network. In this paper, we formulate and propose two novel algorithms for the selection of multiple D2D users allowed to share radio resources already scheduled by the base station (BS) for a given cellular user. All users (i.e. the cellular and selected D2D users) distributively determine their transmit power based on a fixed target signal-to-noise ratio (SNR). Thereafter, the BS chooses suitable multiple D2D users that are allowed to share a given cellular user's radio resources using a distance-based selection criteria. Our results show increased total cell spectral efficiency with both algorithms while all users have better guarantees of achieving their QoS requirements with only one of the algorithms.
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