Robust power optimization for device-to-device communication in a multi-cell network under partial CSI

For device-to-device (D2D) underlaid cellular networks, the perfect channel state information (CSI) may not be available at the base station (BS). In this work, under an assumption of partial CSI, we study the problem of maximizing the expected sum rate for a cellular user (CU) and a D2D pair, with...

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Vydáno v:	IEEE International Conference on Communications (2003) s. 1 - 6
Hlavní autoři:	Ramezani-Kebrya, Ali, Min Dong, Ben Liang, Boudreau, Gary, Seyedmehdi, S. Hossein
Médium:	Konferenční příspěvek
Jazyk:	angličtina
Vydáno:	IEEE 01.05.2017
Témata:	Copper Device-to-device communication Interference Resource management Signal to noise ratio Uplink Upper bound
ISSN:	1938-1883
On-line přístup:	Získat plný text
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Popis
Shrnutí:	For device-to-device (D2D) underlaid cellular networks, the perfect channel state information (CSI) may not be available at the base station (BS). In this work, under an assumption of partial CSI, we study the problem of maximizing the expected sum rate for a cellular user (CU) and a D2D pair, with receive beamforming at the BS, subject to minimum SINR requirements for both the CU and D2D pair, per-node maximum power, and inter-cell interference constraints in multiple neighboring cells. We solve this non-convex joint optimization problem in two steps. We first consider the D2D admissibility problem to determine whether the D2D pair can reuse the channel resource of the CU. We then propose a robust power control algorithm using a ratio-of-expectation approximation to maximize the expected sum rate. For benchmarking, we further provide an upper bound on the maximum expected sum rate. Simulation results show that our proposed solution gives performance close to the upper bound.
ISSN:	1938-1883
DOI:	10.1109/ICC.2017.7996669