Title :
Adaptive modulation and coding in broadband wireless access systems
Author_Institution :
R&D Telecommun. Inst., Nat. Tech. Univ. of Ukraine “Kyiv Polytech. Inst.”, Kiev, Ukraine
Abstract :
This article presents study results of linear Adaptive Modulation and Coding (AMC) methods usage, based on channel quality measurements in Broadband Wireless Access Systems. Article shows that linear methods effectively compensate fading in AWGN channels and channels with Rayleigh flat-fading. In case of multipath channels with Rayleigh and Rician fading, the effectiveness of linear AMC methods is lower, because of significant difference in noise immunity characteristics for separate transmission profiles from their analog for AWGN channels.
Keywords :
AWGN channels; Rayleigh channels; Rician channels; adaptive codes; adaptive modulation; channel coding; multipath channels; radio access networks; AWGN channel; Rayleigh flat fading channel; Rician fading channel; adaptive modulation and coding; broadband wireless access system; channel quality measurement; fading compensation; linear AMC method; multipath channel; noise immunity characteristics; Adaptive systems; Bit error rate; Encoding; Modulation; OFDM; Rician channels; Wireless communication;
Conference_Titel :
Microwave and Telecommunication Technology (CriMiCo), 2013 23rd International Crimean Conference
Conference_Location :
Sevastopol
Print_ISBN :
978-966-335-395-1
