The DOI matches its Crossref record; 13 of the 13 references it cites were found in a registry or an index.
Energy-efficient link adaptation in frequency-selective channels
Abstract
Energy efficiency is becoming increasingly important for small form factor mobile devices, as battery technology has not kept up with the growing requirements stemming from ubiquitous multimedia applications. This paper addresses link adaptive transmission for maximizing energy efficiency, as measured by the "throughput per Joule" metric. In contrast to the existing water-filling power allocation schemes that maximize throughput subject to a fixed overall transmit power constraint, our scheme maximizes energy efficiency by adapting both overall transmit power and its allocation, according to the channel states and the circuit power consumed. We demonstrate the existence of a unique globally optimal link adaptation solution and develop iterative algorithms to obtain it. We further consider the special case of flat-fading channels to develop an upper bound on energy efficiency and to characterize its variation with bandwidth, channel gain and circuit power. Our results for OFDM systems demonstrate improved energy savings with energy optimal link adaptation as well as illustrate the fundamental tradeoff between energy-efficient and spectrum-efficient transmission.
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Cites
Boyd, S., & Vandenberghe, L. (2004) · doi:10.1017/cbo9780511804441 · Cited by 56,601
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Tse, D., & Viswanath, P. (2005) · doi:10.1017/cbo9780511807213 · Cited by 13,162
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Energy-Efficiency of MIMO and Cooperative MIMO Techniques in Sensor Networks
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Energy-constrained modulation optimization
Cui, S., Goldsmith, A. J., & Bahai, A. (2005) · IEEE Transactions on Wireless Communications · doi:10.1109/twc.2005.853882 · Cited by 1,491
Spectral efficiency in the wideband regime
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Energy-efficient transmission over a wireless link via lazy packet scheduling
Prabhakar, B., Uysal-Biyikoglu, E., & Gamal, A. E. (2001) · Proceedings IEEE INFOCOM 2001. Conference on Computer Communications. Twentieth Annual Joint Conference of the IEEE Computer and Communications Society (Cat. No.01CH37213) · doi:10.1109/infcom.2001.916721 · Cited by 380
Metadata
- Authors
- Miao, G., Himayat, N., & Li, G. Y.
- Venue
- IEEE Transactions on Communications
- Published
- 2010-02
- Volume
- 58
- Issue
- 2
- Pages
- 545-554
- ISSN
- 0090-6778 (ISSN-L)
- 1558-0857
- OpenAlex
- W2126087318
- Cited by
- 587
- References
- 13
- FWCI
- 45.35
- Type
- journal article
- Language
- en
- Open access
- closed
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