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Content Provider | IET Digital Library |
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Author | Sadr, Mohammad Amin Maleki Attari, Mahmoud Ahmadian Mahboobi, Behrad |
Abstract | In this study, the authors present a novel outage-based approach for distributed multiuser relay beamforming problem which can provide robustness against channel uncertainty. They assume all the channels are subject to Gaussian perturbation. The relay beamforming design is based on stochastic performance optimisation and has been shown to provide an excellent robustness against channel uncertainty. The robust problem aims to minimise the total power transmission of the relays that are subject to the probability of each receiver's signal-to-interference noise ratio (SINR) do not fall below a given outage-probability specification. The underlying goal is to establish approximate probabilistic SINR constrained formulations in the form of convex conic optimisation problem. They show that the aforementioned problem is non-convex, in general. They develop two novel conservative approximation schemes for handling non-convex probabilistic constraint. Simulation results show the robustness of the proposed methods significantly improves the existing methods, both in terms of the solution quality and the computational complexity. |
Starting Page | 1968 |
Ending Page | 1979 |
Page Count | 12 |
ISSN | 17518628 |
Volume Number | 9 |
e-ISSN | 17518636 |
Issue Number | Issue 16, Nov (2015) |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-com/9/16 |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-com.2014.1043 |
Journal | IET Communications |
Access Restriction | Open |
Rights Holder | © The Institution of Engineering and Technology |
Subject Keyword | Array Signal Processing Channel Uncertainty Computational Complexity Convex Conic Optimisation Problem Convex Programming Distributed Multiuser Relay Beamforming Problem Gaussian Perturbation Low-complexity Robust Relay Optimisation Multiple Peer-to-peer Beamforming Multiuser Channel Nonconvex Probabilistic Constraint Optimisation Technique Outage-based Approach Power Transmission Minimisation Probabilistic SINR Constrained Formulation Probability Radio Frequency Interference Radio Link And Equipment Radio Receiver Receiver Signal-to-interference Noise Ratio Probability Relay Network Reliability Signal Processing And Detection Statistics Stochastic Performance Optimisation Stochastic Programming Telecommunication Telecommunication Network Reliability Tractable Approximation Approach Wireless Channel |
Content Type | Text |
Resource Type | Article |
Subject | Electrical and Electronic Engineering Computer Science Applications |
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