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- 13Jiang, Hai (Electrical and Computer Engineering)
- 2Ardakani, Masoud (Electrical and Computer Engineering)
- 2Tellambura, Chintha (Electrical and Computer Engineering)
- 2Vorobyov, Sergiy A (Electrical and Computer Engineering)
- 2Vorobyov, Sergiy A. (Electrical and Computer Engineering)
- 1Niu, Di (Electrical and Computer Engineering)
- 2Compressed sensing
- 2Game theory
- 1Cloud Computing
- 1Cognitive Radio
- 1Cognitive Radio, Spectrum Sensing, Energy Detector, p-norm Detector
Cognitive radio is one of the most promising technologies to address the spectrum scarcity problem. Cognitive radio requires spectrum sensing, which is used by unlicensed users to opportunistically access the licensed spectrum. Spectrum sensing using energy detection offers low-cost and...
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...
The expected explosive data traffic and scarcity of available spectrum in wireless networks place higher demands on spectrum utilization. As one of the advanced techniques for improving spectral efficiency, non-orthogonal multiple access (NOMA) has raised considerable attention recently. Although...
Energy harvesting techniques, which exploit ambient energy to power communications devices, have gained increased attention in recent years. Such techniques have emerged as a promising solution for energy-constrained wireless networks, with possible applications in the future Internet of things....
Cooperative linear precoding for spectrum sharing in multi-user wireless systems: game theoretic approachDownload
Future wireless communications expect to experience a spectrum shortage problem. One practical solution is spectrum sharing. This thesis studies precoding strategies to allocate communication resources for spectrum sharing in multi-user wireless systems from a game-theoretic perspective. The...
Efficiency and Security Analysis in Multi-User Wireless Communication Systems: Cooperation, Competition and Malicious BehaviorDownload
Efficiency and security are major concerns with increasingly higher importance in modern wireless communications. These two concerns are especially significant for multi-user wireless communications where different users share or compete for resources. Among different users, there are...
With the proliferation of e-commerce business, the study of online user purchasing behavior plays an important role in improving purchasing experiences of users as well as providing valuable intelligence to sellers. While most previous research efforts focused on explicit user behavior modeling,...
High transmission rates will be demanded in future wireless communication networks. However, we will soon experience a spectrum scarcity problem since almost all available spectrum has been allocated to various wireless applications. A promising solution to this problem is to significantly...
The advent of compressed sensing provides a new way to sample and compress signals. In this thesis, a parallel compressed sensing architecture is proposed, which samples a two-dimensional reshaped multidimensional signal column by column using the same sensing matrix. Compared to architectures...
Parameter Estimation in Low-Rank Models from Small Sample Size and Undersampled Data: DOA and Spectrum EstimationDownload
In estimation theory, a set of parameters are estimated from a finite number of measurements (samples). In general, the quality of estimation degrades as the number of samples is reduced. In this thesis, the problem of parameter estimation in low-rank models from a small number of samples is...