The DOI matches its Crossref record; 8 of the 8 references it cites were found in a registry or an index.
Capacity and mutual information of wideband multipath fading channels
Open accessAbstract
We investigate the capacity and mutual information of a broadband fading channel consisting of a finite number of time-varying paths. We show that the capacity of the channel in the wideband limit is the same as that of a wideband Gaussian channel with the same average received power. However, the input signals needed to achieve the capacity must be "peaky" in time or frequency. In particular, we show that if white-like signals are used instead (as is common in spread-spectrum systems), the mutual information is inversely proportional to the number of resolvable paths L/spl tilde/ with energy spread out, and in fact approaches 0 as the number of paths gets large. This is true even when the paths are assumed to be tracked perfectly at the receiver. A critical parameter L/spl tilde//sub crit/ is defined in terms of system parameters to delineate the threshold on L over which such overspreading phenomenon occurs.
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Cites
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Cited by
Capacity limits of MIMO channels
Goldsmith, A., Jafar, S. A., Jindal, N., & Vishwanath, S. (2003) · IEEE Journal on Selected Areas in Communications · doi:10.1109/jsac.2003.810294 · Cited by 2,379
Beyond Massive MIMO: The Potential of Data Transmission With Large Intelligent Surfaces
Hu, S., Rusek, F., & Edfors, O. (2018) · IEEE Transactions on Signal Processing · doi:10.1109/tsp.2018.2816577 · Cited by 892
Foundations of MIMO Communication
Heath Jr, R. W., & Lozano, A. (2018) · Cambridge University Press eBooks · doi:10.1017/9781139049276 · Cited by 426
Metadata
- Authors
- Telatar, I. E., & Tse, D. N. C.
- Venue
- IEEE Transactions on Information Theory
- Published
- 2000-07
- Volume
- 46
- Issue
- 4
- Pages
- 1384-1400
- ISSN
- 0018-9448 (ISSN-L)
- OpenAlex
- W2162028181
- Cited by
- 371
- References
- 8
- FWCI
- 18.62
- Type
- journal article
- Language
- en
- Open access
- green
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