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 11 of 11 for “"Product code"”.
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On performance analysis and implementation issues of iterative decoding for graph based codes
There is no doubt that long random-like code has the potential to achieve good performance because of its excellent distance spectrum. However, these codes remain useless in practical applications due to the lack of decoders rendering good performance at an acceptable complexity. The invention of …
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Distributed Turbo Product Coding Techniques Over Cooperative Communication Systems
In this dissertation, we propose a coded cooperative communications framework based on Distributed Turbo Product Code (DTPC). The system uses linear block Extended Bose-Chaudhuri-Hochquenghem (EBCH) codes as component codes. The source broadcasts the EBCH coded frames to the destination and nearby …
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Security approaches for Radio Frequency Identification systems
… related to the security of the Electronic Product Code (EPC) class of Radio Frequency Identification (RFID) tags and associated data. RFID systems can be used to improve supply chain performance and automate asset management. However, an antagonist could use the functionality of the RFID …
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An auto-ID based approach to reduce counterfeiting in the U.S. pharmaceutical supply chain
… packaging, and creating a unique electronic product code (EPC). RF tags though, are not the only component of the required solution. New legal actions, better use of existing technical countermeasures, and industry cooperation are also required. This thesis will outline in more detail the …
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Iterative decoding for rate adaptive forward error correction on the mobile satellite channel.
… examine rate adaptive forward error correction codes for the mobile satellite channel. We are especially interested in codes that can be iteratively decoded. Multilevel coded modulations are considered: partitioning of constellations, coding principle and iterative decoding are studied. We …
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A comparative approach to the implementation of drug pedigree discovery systems
… from hardware to software. The Electronic Product Code (EPC) standard uniquely identifies RFID-tagged products. An application that supports the usage of EPCs is an Electronic Drug Pedigree (E-Pedigree), which is a historical record that indicates the chain of custody of a particular drug …
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Interoperable internet-scale security framework for RFID networks
… are used in supply chains where the Electronic Product Code (EPC) and associated business event data are transmitted through RFID networks. Security and privacy issues are critically important in RFID networks because EPC data and their associated business events are valuable assets. Companies …
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Improved error control techniques for data transmission
… of digital data. Many methods for decoding such codes already exist. The choice falls mainly into two areas: hard-decision algebraic decoding, a computationally-efficient method, and soft-decision combinatorial decoding, which although more complex offers better error-correction. The work …
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An analysis of physical object information flow within Auto-ID infrastructure
… also consist of two components: Electronic Product Code (EPC) and Physical Markup Language (PML). On the other hand, software architecture components consist of four components: readers, Savant, EPC Information Server (EPC-IS), and Object Name Service (ONS). EPC-IS. which defines the …
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Enchancing RFID data quality and reliability using approximate filtering techniques
… e-pedigree in observing identical Electronic Product Code (EPC) of the low cost tag in local site and distributed region in supply chain. Experimental results showed, that the first proposed approach, Duplicate Filtering Hash (DFH) achieved the lowest false positive rate of 0.06% and the …
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UHF RFID Antenna Impedance Matching Techniques
… (ISM) 902-928MHz band and global Electronic Product Code (EPC) 860‑960MHz band are powered passively (power extracted from carrier wave) and cost less than 15 cents per tag. Low cost UHF ISM RFID tags are an effective solution for tracking large inventories. UHF ISM tag antennas are typically …