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A non-orthogonal multiple access (NOMA) technique is presented where the information bits of a user are carried by the least significant bits (LSBs) of other users' symbols. It is shown that the user performance can be improved by a receiver combining that relies on the alignment of sub-constellation corresponding to the LSBs at user receiver. The rate outage analysis shows that the proposed technique...
In addition to enhanced mobile broadband (eMBB) and massive machine type communications (mMTC), 5G technology targets the support of novel applications in the field of critical communications. The later will involve operation with drones and robotics, industrial control and mission critical data. In this paper, we discuss a possible implementation concept of a novel frame structure which supports...
Massive MIMO and beamforming is commonly considered as one of the key technologies for future cellular communications. It is targeted to solve the capacity requirements in enhanced mobile broadband and enable new services in other communication fields, e.g. machine type communications. In this work, we study M-MIMO technology in a novel approach, combining system simulations and modeling with hardware...
With the persistent densification of cellular networks, especially in urban environments, three-dimensional beam-forming utilizing full dimension MIMO antenna arrays becomes of interest for mobile communications, since it allows to mitigate the inter-cell interference and enables high order spatial multiplexing of a multitude of users. In this paper, we consider beamformer optimization with the goal...
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