extremely high downlink connections‚ both indoors and outdoors. VSF-CDMA provides high-efficiency‚ high-speed packet transmissions for the uplink. The 4G adoption of concatenated FEC (Forward Error Correction) will allow much larger data packets to be transmitted and at the same time reduce the bit error rate. This will increase the overall data through-put. One of the main advantages that 4G technology will have over 3G is higher data rates. This will benefit the end user by allowing faster
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satellite-ATM networks. First a reference satellite-ATM network architecture is presented along with an overview of the service categories available in ATM networks. The error characteristics of satellite channels‚ and techniques to improve the error characteristics‚ and the impact on ATM network performance are then discussed. A delay model for satellite networks and the major components of delay and delay variation are described. A survey of design options for TCP over UBR‚ GFR and ABR services in ATM
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In 1945 Arthur C. Clarke wrote an article entitled "The Future of World Communications" for the magazine Wireless World. This article‚ which the editors renamed "Extra-Terrestrial Relays"‚ was published in the October issue. In it Clarke described the properties of the geostationary orbit‚ a circular orbit in the equatorial plane of the earth such that a satellite appears to hover over a fixed point on the equator. The period of revolution is equal to the period of rotation of the earth
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P SoC A Device Study SEMINAR REPORT Submitted in partial fulfillment of the requirement for the award of degree of Bachelor of Technology in ELECTRONICS AND COMMUNICATION ENGINEERING of MAHATMA GANDHI UNIVERSITY By JINJU P.K (65232) Department of Electronics and Communication Engineering Rajagiri School of Engineering and Technology Rajagiri Valley‚ Cochin - 682 039 2010-2011 DEPARTMENT OF ELECTRONICS AND COMMUNICATION ENGINEERING CERTIFICATE Certified that
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is used to store a duplicate of the data‚ the cost per megabyte is high. This level is commonly referred to as mirroring (What is RAID?). c. RAID Level 2‚ which uses Hamming error correction codes‚ is intended for use with drives which do not have built-in error detection. All SCSI drives support built-in error detection‚ so this level is of little use when using SCSI drives (What is RAID?). d. RAID Level 3 stripes data at a byte level across several drives‚ with parity stored on one
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Chapter-1: Introduction The purpose of a Communication System is to transport an information bearing signal from a source to a user destination via a communication channel. MODEL OF A COMMUNICATION SYSTEM(ANALOG) Information Source and Input Transducer I/P Signal TRANSMITTER CHANNEL Destination and Output Transducer O/P Signal RECEIVER Fig. 1.1: Block diagram of Communication System. The three basic elements of every communication systems are Transmitter‚ Receiver and Channel. The
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STATEMENT OF PURPOSE My decision to apply for MIS course at your university is driven by my aspiration to work in a challenging domain‚ where I can put my technical and analytical skills to the best use for the benefit of my company. With computer and the processing of information becoming ubiquitous‚ this field finds a critical place in decision making in organizations. I have a firm belief that this emerging dynamic and challenging management knowledge field will enable me to utilize my skills
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should be performed to check whether all characters entered in this field are numeric and there are no alphabetic characteristics. -Conduct a cross-footing and zero-balanced test to verify the accuracy of the method used. There should be a prompt correction and re-processing of erroneous transactions. D. A salesperson mistakenly entered an online order for 50 laser printers instead of 50 laser printer toner cartridges. -Conduct a range check; quantity ordered has to
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=00011001₂ -25 = 11100110₂ + 00000001₂ =11100111₂ 25-(-25) = 00011001₂ – 11100111₂ = 10110010₂ 2. Why is parity bit required? How is it used in correcting single bit errors? Explain with the help of an example. A parity bit is a bit‚ with a value of 0 or 1‚ which is added to a block of data for error detection purposes. It gives the data either an odd or even parity‚ which is
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ECC memory and non-ECC memory. ECC memory stands for error correcting code. The data path width for DIMMs is normally 64 bits with ECC the data path it 72 bits the extra 8 bits are for error checking. For ECC to work the motherboard and all installed modules must support it. 8) What feature is used on memory slots and modules to prevent modules from being inserted incorrectly? The notch in the memory slot 9) Assume you have an Asus motherboard model number P6X58-E PRO. a. What is the maximum amount
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