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A robust timing and frequency synchronization for OFDM systems
A robust symbol-timing and carrier-frequency synchronization scheme applicable to orthogonal frequency-division-multiplexing systems is presented and a new performance measure is introduced for timing estimation, based on the plot of signal to timing-error-induced average interference power ratio against the timing estimate shift. Expand
A Survey on Non-Orthogonal Multiple Access for 5G Networks: Research Challenges and Future Trends
An overview of the latest NOMA research and innovations as well as their applications is provided and the papers published in this special issue are put into the context of the existing literature. Expand
Green Cellular Networks: A Survey, Some Research Issues and Challenges
A brief survey of methods to improve the power efficiency of cellular networks, explore some research issues and challenges and suggest some techniques to enable an energy efficient or "green" cellular network. Expand
On timing offset estimation for OFDM systems
Two timing offset estimation methods for orthogonal frequency division multiplexing (OFDM) systems as modifications to Schmidl and Cox's method are presented and both have significantly smaller estimator variance in both channel conditions. Expand
Optimal and Suboptimal Power Allocation Schemes for OFDM-based Cognitive Radio Systems
An optimal power loading algorithm for an OFDM-based cognitive radio (CR) system is investigated and shows that for a given interference threshold, the proposed optimal scheme allows CR base station to transmit more power in order to achieve a higher transmission rate than the classical loading algorithms. Expand
Reed-Solomon Codes and Their Applications
R Reed-Solomon Codes and the Design of Sequences for Spread-Spectrum Multiple-Access Communications, edited by D. McEliece and L. Pursley. Expand
An investigation into time-domain approach for OFDM channel estimation
A time-domain based channel estimation for OFDM system with pilot-data multiplexed scheme and simulation results show that proposed method achieves almost the same performance as DFT-based LMMSE method and better BER performance than the other methods while keeping less complexity. Expand
Equal-gain diversity receiver performance in wireless channels
A powerful frequency-domain approach is developed in which the average error-rate integral is transformed into the frequency domain, using Parseval's theorem, and integral expressions for the average symbol-error rate of an arbitrary two-dimensional signaling scheme are derived. Expand
Secure Cooperative Sensing Techniques for Cognitive Radio Systems
Techniques to identify malicious users and mitigate their harmful effect on the performance of the cooperative sensing system are presented. Expand
Cognitive Wireless Communication Networks
The proposed book includes a set of research and survey articles featuring the recent advances in theory and applications of cognitive radio technology for the next generation (e.g., fourthExpand