Abstract:
Device-to-device (D2D) communication has been proposed as a solution for vehicle-to-vehicle (V2V) communication, which has strict requirements on reliability and latency....Show MoreMetadata
Abstract:
Device-to-device (D2D) communication has been proposed as a solution for vehicle-to-vehicle (V2V) communication, which has strict requirements on reliability and latency. Previous works on V2V communication typically assume single-antenna users, which ignore the potential of multiple antennas. By contrast, this paper studies an uplink power control problem in multi-antenna V2V underlay cellular networks. We first derive the lower bounds on ergodic rates of multi-antenna V2V users and cellular users for maximum-ratio combining and zero-forcing detection. Using these rate lower bounds, we formulate a large-scale fading based power control problem to maximize the sum rate of cellular users while introducing the rate constraints of V2V users. Moreover, the geometric programming technique is adopted to solve the optimization power control problem. Simulation results show that the proposed rate-constrained power control scheme provides more reliable V2V communications with higher data rates at the price of a small loss of network sum rate, compared to the fixed maximum power scheme.
Date of Conference: 23-25 October 2017
Date Added to IEEE Xplore: 11 December 2017
ISBN Information:
Electronic ISSN: 2155-7586