Optimum Power and Rate Adaptation for MQAM in Rayleigh Flat Fading With Imperfect Channel Estimation

We derive an optimum power and rate adaptation for maximizing the spectral efficiency based on an imperfect channel estimate and subject to average power and instantaneous bit error rate (BER) constraints for multilevel quadrature amplitude modulation (MQAM) over Rayleigh flat-fading channels. The o...

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Vydáno v:	IEEE transactions on vehicular technology Ročník 57; číslo 4; s. 2622 - 2627
Hlavní autoři:	Olfat, A., Shikh-Bahaei, M.
Médium:	Journal Article
Jazyk:	angličtina
Vydáno:	New York, NY IEEE 01.07.2008 Institute of Electrical and Electronics Engineers The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Témata:	Adaptation Amplitude estimation Applied sciences Bit error rate Channel estimation Channels Constellation diagram Constellations Detection, estimation, filtering, equalization, prediction Estimates Exact sciences and technology Fading flat fading Information, signal and communications theory Mathematical analysis Mean square error methods Modulation coding Modulation, demodulation Nonlinear equations Optimization power and rate adaptation Quadrature amplitude modulation Rayleigh channels Signal and communications theory Signal, noise spectral efficiency Studies Systems, networks and services of telecommunications Telecommunications Telecommunications and information theory Teletraffic Transmission and modulation (techniques and equipments) channel estimation Flat fading power and rate adaptation spectral efficiency Fading channels Correlation coefficient Performance evaluation Parameter estimation Quadrature amplitude modulation Bit error rate Flow rate regulation Rayleigh channels Optimization method Teletraffic flat fading Non linear equation M ary modulation Channel estimation Traffic management Optimal solution Traffic control Rayleigh fading Multilevel system Comparative study Gain
ISSN:	0018-9545, 1939-9359
On-line přístup:	Získat plný text
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