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 14 of 14 for “"software radios"”.
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Design and implementation of software radios using a general purpose processor
… design, implementation and evaluation of a novel software radio architecture based on wideband digitization, a general purpose processor and application level software. The system is designed to overcome the many challenges and exploit the advantages of performing real-time signal processing in a …
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Movable frame hybrid MAC : a multi-MAC protocol for wireless software radios in multi-rate multimedia applications
… This Movable Frame Hybrid MAC (FMHMAC) is called software radios in third generation (3G) wireless network designing. A comparative evaluation of this access technique is done by simulation procedure Through simulations, the performances of the proposed access technique (e.g. call blocking …
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Black-Box Fuzzing of the REDHAWK Software Communications Architecture
As the complexity of software increases, so does the complexity of software testing. This challenge is especially true for modern military communications as radio functionality becomes more digital than analog. The Software Communications Architecture was introduced to manage the increased …
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Design and Implementation of a Soft Radio Architecture for Reconfigurable Platforms
Software radios have evolved as multimode, programmable digital radios that perform radio functions using digital signal processing algorithms. They have been designed as software programmable radios using a combination of various hardware elements and structures. In this dissertation a {em{soft …
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A Defense-In-Depth Security Architecture for Software Defined Radio Systems
… Recently, there has been a shift towards software defined radios due to the flexibility soft- ware implementations provide. This enables an easier development process, longer product lifetimes, and better adaptability for congested environments than conventional hardware systems. However, …
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See through walls with Wi-Fi
… validity of our design by building it into USRP software radios and testing it in office buildings.
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Evaluation of GNU Radio Platform Enhanced for Hardware Accelerated Radio Design
The advent of software radio technology has enabled radio developers to design and implement radios with great ease and flexibility. Software radios are effective in experimentation and development of radio designs. However, they have limitations when it comes to high-speed, high-throughput …
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Performance Benchmarking Software-Defined Radio Frameworks: GNURadio and CRTSv.2
In this thesis, we benchmark the Cognitive Radios Test System version 2.0 (CRTSv.2) to analyze its software performance with respect to its internal structure and design choices. With the help of system monitoring and profiling tools, CRTSv.2 is tested to quantitatively evaluate its features and …
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LTE radio analytics made easy and accessible
… or femto cells. We implement LTEye on USRP software radios, and present empirical insights and analytics from multiple AT&T and Verizon base stations in our locality.
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Digital radio and its application in the HF (2-30 MHz) band
… of wideband and multi-channel digital HF radios (software radios) have been investigated. The work presented indicates that it is now possible, for the first time, to construct high performance, direct sampling wideband digital HF receivers. In such a receiver the entire HF band is …
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Evaluation of roaming and download times in universal cellular/wireless LAN systems
… that have led to continued discussion about software radios (also called software defined radio, SDR). SDR is emerging as a potential programmatic solution: a software implementation of the user terminal which is able to reconfigure such terminal to suit the changing radio environment as for …
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Analysis and Dynamic Range Enhancement of the Analog-to-Digital Interface in Multimode Radio Receivers
… standards, multimode handsets capable of software reconfiguration are needed. These "software radios" are distinguished from their traditional counterparts by their strong reliance on digital channel filtering and demodulation which may be reprogrammed to receive different standards. In …
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On robust and secure wireless communication system design using software-defined radios
… physical layer authentication, and software radio design for DARPA Spectrum Challenge. A common theme for the three distinct problems is the system perspective that we have adopted throughout this dissertation. Instead of considering isolated issues within these problems, we have …
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Efficient Interference Cancellation Techniques for Advanced DS-CDMA Receivers
The focus of this dissertation is the study of advanced processing techniques for multiuser interference cancellation in direct sequence code division multiple access communications. Emphasis is placed on the development of efficient techniques that are practical to implement. The work begins with …