ATOM · Advancing the state of the art of MIMO: the key to the successful evolution of wireless networks

Advancing the state of the art of MIMO: the key to the successful evolution of wireless networks

Work Package 1 The project management work package is responsible for the co-ordination of the project in terms of both administrative and technical aspects with clear objective to achieve effective and timely operation of the project in order to deliver high-quality scientific results and transfer of knowledge. Work Package 2 The non-regenerative massive multi-input-multioutput (MIMO) non-orthogonal multiple access (NOMA) relay systems are investigated. The NOMA is invoked with a superposition coding technique at the transmitter and successive interference cancellation (SIC) technique at the receiver. In addition, a maximum mean square error-SIC receivers design is adopted. With the aid of deterministic equivalent and matrix analysis tools, a closed-form expression of the signal to interference plus noise ratio (SINR) is derived. Work Package 3 Investigation of the application of simultaneous wireless information and power transfer (SWIPT) to non-orthogonal multiple access (NOMA). A new cooperative multiple-input-single-output (MISO) SWIPT NOMA protocol is proposed, where user 2 who has a strong channel condition acts as an energy-harvesting relay to help user 1 who has a poor channel condition. In order to, maximize the data rate of user 2 while satisfying the QoS requirement of user 1. The formulated problem boils down to a complicated nonconvex problem. Firstly, we use the semidefinite relaxation (SDR) technique to relax the nonconvex problem. Secondly, an iterative algorithm with the successive convex approximation (SCA) method is proposed to solve the relaxed problem. As a result, a local optimal solution is obtained. The cooperative SWIPT NOMA protocol design in SISO case is investigated and a semi-closed-form solution is derived, which can strictly guarantee the global optimality. Work Package 4 Derivation of analytical expression for secrecy outage probability under Weibull fading when outdated channel state of eavesdropper link used by legitimate transmitter. Derivation of a closed-form expression for secrecy outage probability of a transmit-antenna-selection (TAS) SWIPT system operating in the presence of cooperating eavesdroppers employing on–off power splitting architecture. Derivation of a closed-form expression for the intercept probability of a Three-step Two-way Energy Harvesting decode-and-forward Relaying system subject to K-μ shadowed links. We have derived a novel exact expression for the ergodic capacity of a D2D communication system that uses MC-CDMA and operates in underlay mode with a cellular network. The gain in interference mitigation achieved by using the spread spectrum technique in a variety of interference scenarios is also analyzed. Work Package 5 Devloped a ‘proof of concept’ testbed for the proposed MIMO heterogeneous architecture by Prof. Liow's group at UTM, Malaysia. Used the proposed testbed for assessing the effectiveness and performance of the ATOM approaches proposed in WPs 2-4 through experiments and simulation.

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