Performance of adaptively loaded OFDM under Rayleigh fading with diversity combining

In this study, we investigate the performance of adaptively loaded OFDM (orthogonal frequency division multiplexing) under Rayleigh fading with ideal maximal ratio diversity combining (MRC). We consider two approaches for adaptive loading: maximization of throughput subject to total transmit power a...

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Vydáno v:IEEE 54th Vehicular Technology Conference. VTC Fall 2001. Proceedings (Cat. No.01CH37211) Ročník 2; s. 957 - 961 vol.2
Hlavní autoři: Canpolat, B., Tanik, Y.
Médium: Konferenční příspěvek
Jazyk:angličtina
Vydáno: IEEE 2001
Témata:
Bit rate
Digital video broadcasting
Discrete Fourier transforms
Diversity reception
DSL
Error analysis
OFDM modulation
Power system modeling
Rayleigh channels
Throughput
ISBN:9780780370050, 0780370058
ISSN:1090-3038
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Abstract In this study, we investigate the performance of adaptively loaded OFDM (orthogonal frequency division multiplexing) under Rayleigh fading with ideal maximal ratio diversity combining (MRC). We consider two approaches for adaptive loading: maximization of throughput subject to total transmit power and subcarrier error rate constraints and minimization of subcarrier error rate subject to total transmit power and target bit rate constraints. We demonstrate the performance improvement of adaptive loading over fixed loading in both cases. A tight lower bound on the average spectral efficiency of the throughput maximizing adaptive loading method under Rayleigh fading with diversity combining is obtained. For the error rate minimization approach, an optimum integer bit loading algorithm is presented which is computationally simpler than the optimum Hughes-Hartogs algorithm.
AbstractList In this study, we investigate the performance of adaptively loaded OFDM (orthogonal frequency division multiplexing) under Rayleigh fading with ideal maximal ratio diversity combining (MRC). We consider two approaches for adaptive loading: maximization of throughput subject to total transmit power and subcarrier error rate constraints and minimization of subcarrier error rate subject to total transmit power and target bit rate constraints. We demonstrate the performance improvement of adaptive loading over fixed loading in both cases. A tight lower bound on the average spectral efficiency of the throughput maximizing adaptive loading method under Rayleigh fading with diversity combining is obtained. For the error rate minimization approach, an optimum integer bit loading algorithm is presented which is computationally simpler than the optimum Hughes-Hartogs algorithm.
Author Canpolat, B.
Tanik, Y.
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Snippet In this study, we investigate the performance of adaptively loaded OFDM (orthogonal frequency division multiplexing) under Rayleigh fading with ideal maximal...
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StartPage 957
SubjectTerms Bit rate
Digital video broadcasting
Discrete Fourier transforms
Diversity reception
DSL
Error analysis
OFDM modulation
Power system modeling
Rayleigh channels
Throughput
Title Performance of adaptively loaded OFDM under Rayleigh fading with diversity combining
URI https://ieeexplore.ieee.org/document/956915
Volume 2
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