Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 7 of 7 for “"Sum Capacity"”.
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An Examination into the Statistics of the Singular Vectors for the Multi-User MIMO Wireless Channel
<p>Many capacity and near-capacity achieving methods in multiple-input-multipleoutput (MIMO) wireless channels make use of the singular value decomposition (SVD) of the channel matrix. For the multi-user case, the SVD of the channel matrix for each user may result in right and left singular vectors …
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Efficient scheduling of multi-antenna broadcast systems
… users, and analyze the gap between the full sum capacity and the rate that can be achieved by transmitting to a suitably selected pair of users. In particular, we consider a scheme that picks the user with the largest channel gain., and selects a second user from the next L - 1 largest ones …
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Interference channels with half-duplex source cooperation
… channel between the sources; half-duplex assumes that, at each time instant, the sources can either transmit or listen but cannot do both. This assumption differs from some previous works on source cooperation. When the cooperation is bidirectional and the channel gains are symmetric, the …
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Examining transmission power in minimum capacity underwater acoustic networks
… acoustic network by minimizing the total capacity of the network while maintaining certain data flow requirements. This is motivated by an approximate model for underwater acoustic transmission power that demonstrates that decreasing the distance between nodes, the capacity of a link …
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Information Theoretic Limits of State-dependent Networks
… at the receiver. Inner and outer bounds on the capacity region are first derived, which improve the state-of-the-art bounds given in the literature. Further comparison of these bounds yields either segments on the capacity region boundary or the full capacity region by considering various …
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Capacity-approaching data transmission in MIMO broadcast channels
… at the medium access control (MAC) layer from a sum-capacity perspective. Various roles of multiple antennas are studied under channel-aware scheduling, including diversity, beamforming and spatial multiplexing. At a system performance level, our work shows that downlink throughput can be …
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Interference management in wireless networks
… taken for granted. Along with high bandwidth consuming applications such as high-definition video, mobile devices such as smartphones and tablets are becoming omnipresent. The legacy wireless systems are not designed to meet such an exponential growth in the demand for wireless connectivity. To …