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 12 of 12 for “"burst error"”.
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Efficient coding/decoding strategies for channels with memory
… digital communication channels are affected by errors that tend to occur in bursts. A great deal of work has been devoted to finding good burst-error-correcting codes and developing burst-error-correcting schemes. However, burst-error-correcting codes are generally useless for long bursts. Some …
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Coding performance on satellite channels using AX.25 protocol
… insure that data is received correctly, certain error control strategies are employed. In packetized transmission, automatic-repeat-request (ARQ) schemes and error correcting codes have been employed. Currently a combination of both is not employed by the AX.25 protocol. The purpose of this …
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Efficient forward error correction coding technique for spread spectrum communications
… and the simulation results for the Forward Error Correction (FEC) of the wireless data in a highly noisy and severe fading wireless medium, based on standard (IEEE 802.11 Wireless Local Area Network specification) and GPS driven non-standard MAC schemes. The design and testing of this coding …
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Error -Tolerant Digital Signal Processing
… framework for deep submicron (DSM) noise/soft error-tolerance and provide its energy-distortion analysis. We introduce a novel algorithmic noise tolerance (ANT) technique referred to as reduced precision redundancy (RPR), which can be easily integrated to any DSP system. Combined with voltage …
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Aspects of burst errors in digital telecommunications transmission systems.
… The objectives are to identify the structure of burst error activity and sense any subsequent changes in this structure. This research project investigates the use of the autocorrelation function of the error activity. Sources of error activity in digital transmission systems are studied and …
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Optimum implementation of BCH codes
… best constructive codes for channels in which error affect successive symbols independently. The binary BCH codes, a subclass of BCH codes, are known to have good random error correcting capability and Reed-Solomon (RS) codes, an important subclass of BCH codes, have very good burst error …
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The Limiting Error Correction Capabilities of the CD ROM
The purpose of this work was to explore the error correction performance of the CDROM data storage medium in both a standard and hostile environment. A detailed simulation of the channel has been written in Pascal. Using this the performance of the CD-ROM correction strategies against errors may be …
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Analysis and Enforcement of Properties in Software Systems
… software systems are often labor intensive and error prone. Furthermore, they focus primarily on functional correctness of the software code while ignoring micro-architectural details of the underlying processor, such as cache and speculative execution, which may undermine their soundness …
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Iterative Decoding and Channel Estimation over Hidden Markov Fading Channels
… estimation, frequency tracking, equalization, burst error characterization, and transmit power control. Of special significance to this thesis, however, has been the use of HMMs to model fading channels typical of wireless communications. This variegated use of HMMs is fueled by their ability …
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Transport layer protocol design over flow-switched data networks
… end flow-switched network which is modeled as a burst-error channel. We observe that Transport Control Protocol (TCP) is not best suited for Optical Flow-Switching (OFS). Specifically, flow control and fair resource allocation through windowing in TCP are unnecessary in an OFS network. Moreover …
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System-Aware Design of Energy-Efficient High-Speed I/O Links
… of the order of 10-to-30 mW/Gb/s and a bit error-rate (BER) target of 10^(-12) or lower. State-of-the-art I/O links consist of a transmit driver, PLL, equalizer, clock recovery unit and comparator, primarily implemented with mixed-signal components, to achieve the desired BER without forward …
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Protichybové systémy využívající blokové kódy
Práce se zabývá výběrem a následným ověřením funkčnosti samoopravného kódu vhodného pro zabezpečení proti shlukujícím se chybám. Nejprve je podán rozbor protichybového kódového systému a požadavky kladené na něj. Dále je uveden přehled a vlastnosti často používaných kódů. Poté se zaměřuje na …