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Skip to Search Results- 20Tellambura, Chintha (Electrical and Computer Engineering)
- 3Ardakani, Masoud (Electrical and Computer Engineering)
- 2Jiang, Hai (Electrical and Computer Engineering)
- 1Cockburn, Bruce (Electrical and Computer Engineering)
- 1Jiang, Hai (Electrical and Computer Engineering)
- 1Krzymien, Witold (Electrical and Computer Engineering)
- 1Abdeyazdan, Zohreh
- 1Ataeeshojai, Mahtab
- 1Atapattu, Saman U. B.
- 1CAO, Yun
- 1Dhungana, Yamuna
- 1Ghaderipoor, Alireza
- 3Wireless communications
- 2Beamforming
- 2Cognitive radio
- 2MIMO
- 1Adaptive transmission
- 1Amplify-and-forward
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Fall 2012
In this thesis, the problem of transmitting data in the form of multicast and broadcast traffic has been studied. The traffic can be from a real-time appli- cation which has a short block length or it can be a general broadcast traffic in an ad-hoc network. The goal is to reduce the total number...
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Fall 2015
Although underlay networks mitigate the dual problems of spectrum congestion and spectrum under-utilization, the bi-directional (primary-to-secondary and secondary-to-primary) interference issues must be addressed to improve their reliability, coverage and capacity. To address these problems,...
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Fall 2013
This thesis investigates detection technologies for multiple-input multiple-output (MIMO) systems and cooperative communications. The exploitation of detection methods and relay strategies to achieve near-optimal performance (measured by symbol error rate or minimum mean squared error) and...
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Fall 2012
Multiple-inputmultiple-output (MIMO) systems, characterized by multiple antenna transceivers, add a ‘space’ dimension to signal processing for wireless communication. Conventionally, the degrees of freedom (DoFs), i.e., the number of independent data streams that can be transmitted or received,...
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Fall 2012
In this dissertation we present new methods for designing efficient Raptor codes in finite and practical block lengths. First we propose an extension of Raptor codes which keeps all the desirable properties, including the linear complexity of encoding and decoding per information bit, and...
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Spring 2022
The fifth-generation (5G) and beyond wireless networks aim to increase the current data rates to more than 10 Gbit/s. Thus, the spectrum crunch necessitates increasing spectral efficiency (SE). Key non-orthogonal technologies for this goal are (I) full-duplex wireless, (II) generalized...
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Fall 2013
In underlay Cognitive Radio (CR) systems, secondary users may transmit while primary transmissions take place. However, the interference aggregates on the primary system, and performance degradation will occur. Thus, quantifying and modeling of the aggregate interference is important in...
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Analysis of Non-Coherent Detectors for Opportunistic Spectrum Access in Broadband Wireless Networks
DownloadSpring 2016
The exponential growth in the number of wireless broadband service users demands an enormous increase in the available communication bandwidth, which inherently translates into an increased demand for the radio frequency spectrum. Opportunistically accessing the unused portions of the spectrum...
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Fall 2011
Wireless relays offer benefits such as coverage extension and improving robustness. Selection of relays may provide further benefits. The best relays are selected based on the channel state information. However, due to feedback or scheduling delays, in practise, the relay and/or the source node can...