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Throughput Measures for Delay-constrained Communications in Fading Channels

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dc.contributor.author Ahmed, Nadeem
Baraniuk, Richard G.
dc.creator Ahmed, Nadeem
Baraniuk, Richard G.
dc.date.accessioned 2007-10-31T00:33:45Z
dc.date.available 2007-10-31T00:33:45Z
dc.date.issued 2003-10-01
dc.date.submitted 2003-10-01
dc.identifier.uri http://hdl.handle.net/1911/19664
dc.description Conference Paper
dc.description.abstract Fading channels, often seen in wireless systems, provide an unfavorable environment for reliable communications. Current methods for evaluating the performance of fading channels include ergodic capacity and epsilon-capacity. Ergodic capacity quantifies the ultimate reliable communication limit of the fading channel. It is only achievable with infinite coding delay, making it impossible to achieve in practice. epsilon-capacity, achievable with finite coding delay, does not provide a measure of error-free communications performance. Since practical communication systems are delay-constrained, it is possible to retransmit codewords when errors occur. We provide a new analysis framework that accounts for codeword retransmission in the analysis of fading channels. We introduce new measures, maximum zero-outage throughput and maximum epsilon-throughput, that predict the performance of practical systems and show that ergodic capacity and epsilon-capacity are special cases of our definitions. We also provide a measure that characterizes the performance of a system with more complex receiver design, using "incremental diversity" to improve throughput.
dc.subject throughput
fading channels
block fading
outage
capacity
dc.subject.other DSP for Communications
dc.title Throughput Measures for Delay-constrained Communications in Fading Channels
dc.type Conference Paper
dc.date.note 2004-03-18
dc.citation.bibtexName inproceedings
dc.date.modified 2006-06-05
dc.contributor.center Digital Signal Processing (http://dsp.rice.edu/)
dc.subject.keyword throughput
fading channels
block fading
outage
capacity
dc.citation.location Allerton, IL
dc.citation.conferenceName Allerton Conference on Communication, Control and Computing
dc.identifier.citation N. Ahmed and R. G. Baraniuk,"Throughput Measures for Delay-constrained Communications in Fading Channels," in Allerton Conference on Communication, Control and Computing,
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  • ECE Publications [1028 items]
    Publications by Rice University Electrical and Computer Engineering faculty and graduate students
  • DSP Publications [512 items]
    Publications by Rice Faculty and graduate students in digital signal processing.