The DOI matches its Crossref record; 5 of the 5 references it cites were found in a registry or an index.
Multiuser OFDM with adaptive subcarrier, bit, and power allocation
Abstract
Multiuser orthogonal frequency division multiplexing (OFDM) with adaptive multiuser subcarrier allocation and adaptive modulation is considered. Assuming knowledge of the instantaneous channel gains for all users, we propose a multiuser OFDM subcarrier, bit, and power allocation algorithm to minimize the total transmit power. This is done by assigning each user a set of subcarriers and by determining the number of bits and the transmit power level for each subcarrier. We obtain the performance of our proposed algorithm in a multiuser frequency selective fading environment for various time delay spread values and various numbers of users. The results show that our proposed algorithm outperforms multiuser OFDM systems with static time-division multiple access (TDMA) or frequency-division multiple access (FDMA) techniques which employ fixed and predetermined time-slot or subcarrier allocation schemes. We have also quantified the improvement in terms of the overall required transmit power, the bit-error rate (BER), or the area of coverage for a given outage probability.
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Transmit power adaptation for multiuser OFDM systems
Jang, J., & Lee, K. B. (2003) · IEEE Journal on Selected Areas in Communications · doi:10.1109/jsac.2002.807348 · Cited by 1,309
Practical Non-Linear Energy Harvesting Model and Resource Allocation for SWIPT Systems
Boshkovska, E., Ng, D. W. K., Zlatanov, N., & Schober, R. (2015) · IEEE Communications Letters · doi:10.1109/lcomm.2015.2478460 · Cited by 1,071
A survey of energy-efficient wireless communications
Feng, D., Jiang, C., Lim, G., Cimini, L. J., Feng, G., & Li, G. Y. (2013) · IEEE Communications Surveys & Tutorials · doi:10.1109/surv.2012.020212.00049 · Cited by 980
Wireless Information and Power Transfer: Energy Efficiency Optimization in OFDMA Systems
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Metadata
- Authors
- Wong, C. Y., Cheng, R. S., Lataief, K. B., & Murch, R. D.
- Venue
- IEEE Journal on Selected Areas in Communications
- Published
- 1999
- Volume
- 17
- Issue
- 10
- Pages
- 1747-1758
- ISSN
- 0733-8716 (ISSN-L)
- OpenAlex
- W2106749358
- Cited by
- 2,657
- References
- 5
- FWCI
- 14.24
- Type
- journal article
- Language
- en
- Open access
- closed
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- Wong, C. Y., Cheng, R. S., Lataief, K. B., & Murch, R. D. (1999). Multiuser OFDM with adaptive subcarrier, bit, and power allocation. IEEE Journal on Selected Areas in Communications. https://doi.org/10.1109/49.793310
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