Optimizing Throughput in a MIMO System With a Self-Sustained Relay and Non-Uniform Power Splitting.
Malik, Rafia.
Vu, Mai.
2019
- We present a novel approach to maximize the transmission rate in a MIMO relay system, where all nodes are equipped with multiple antennas and the relay is self-sustained by harvesting energy using a non-uniform power splitting method. By deriving a closed-form solution for the optimal power splitting ratios for harvesting at the relay and the optimal power allocation for precoding at both source ... read moreand relay, we are able to design an efficient primal-dual algorithm to jointly optimize for these variables, instead of solving for them sequentially as traditionally done. We demonstrate the algorithm efficiency at reducing the run-time by several orders of magnitude compared to standard solvers and existing sequential algorithms, making our algorithm highly amenable to massive MIMO settings. Numerical results further reveal the significant rate gain of non-uniform power splitting over traditional uniform splitting. © 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.read less
- R. Malik and M. Vu, "Optimizing Throughput in a MIMO System With a Self-Sustained Relay and Non-Uniform Power Splitting," in IEEE Wireless Communications Letters, vol. 8, no. 1, pp. 205-208, Feb. 2019. doi: 10.1109/LWC.2018.2866551.
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