Distortion Mitigation in Cognitive Radio Receivers - 20150227
نویسندگان
چکیده
.................................................................................................................................................. I Samenvatting ......................................................................................................................................... III List of Main Abbreviations ....................................................................................................................... V Chapter
منابع مشابه
Mitigation of Non-linearly Induced Interference in Cognitive Wideband Receivers
Software defined radios are widely used as multi-mode and multi-bandRF transceivers for modern communication systems, especially in cognitive radio. However, the design of flexible, cheap, and reconfigurable front-ends is a challenging task in terms of the RF transceiver electronics. Many requirements to the analogue components can be met by today’s technologies, however, this may not always be...
متن کاملDSP-based Mitigation of RF Front-end Non-linearity in Cognitive Wideband Receivers
Software defined radios are increasingly used in modern communication systems, especially in cognitive radio. Since this technology has been commercially available, more and more practical deployments are emerging and its challenges and realistic limitations are being revealed. One of the main problems is the RF performance of the front-end over a wide bandwidth. This paper presents an analysis...
متن کاملThe Optimal MMSE Transceiver Design for IoT-oriented Cognitive Radio Systems
This paper studies interference alignment scheme and minimum mean square error (MMSE) improvement in Internet of Things (IoT)-oriented cognitive systems, where IoT devices share the licensed spectrum by cognitive radio in spectrum underlay. Target to manage the inter-tier interference caused by cognitive spectrum sharing as well as ensure an MMSE at receivers, the interference alignment algorit...
متن کاملSpectrum Sensing Data Falsification Attack in Cognitive Radio Networks: An Analytical Model for Evaluation and Mitigation of Performance Degradation
Cognitive Radio (CR) networks enable dynamic spectrum access and can significantly improve spectral efficiency. Cooperative Spectrum Sensing (CSS) exploits the spatial diversity between CR users to increase sensing accuracy. However, in a realistic scenario, the trustworthy of CSS is vulnerable to Spectrum Sensing Data Falsification (SSDF) attack. In an SSDF attack, some malicious CR users deli...
متن کاملA Nonlinearity Mitigation Method for a Broadband RF Front-End in a Sensor Based on Best Delay Searching
The cognitive radio wireless sensor network (CR-WSN) is experiencing more and more attention for its capacity to automatically extract broadband instantaneous radio environment information. Obtaining sufficient linearity and spurious-free dynamic range (SFDR) is a significant premise of guaranteeing sensing performance which, however, usually suffers from the nonlinear distortion coming from th...
متن کامل