Sub-carrier Adaptive Modulation and Coding in OFDM

Language: English

Published by LAP LAMBERT Academic Publishing Mär 2010, 2010

3838352505 / 9783838352503

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This item is printed on demand - Print on Demand Titel. Neuware -Adaptive Modulation and Coding (AMC) technique exploits the high frequency diversity in wideband OFDM channels to obtain higher data rates. While prior work has discussed the value of AMC from a theoretical perspective, this work presents the design and performance of a real-time sub-carrier AMC system. The measurements from this AMC scheme implemented on an OFDM transceiver prototype indicate how this design achieves accurate and consistent Signal-to-Noise estimates, which are critical for the success of AMC. The performance of this design is compared with a uniform-adaptation scheme that assigns the same modulation and coding to all sub-carriers. The experiments over the wireless channel shows that for a target coded BER of 10^-5, this technique achieves average data rates of 308.3 Mbps and 237.1 Mbps across a variety of line-of-sight (LOS) and non-LOS locations respectively, which result in 34% and 40% gain over the best uniform-adaptation scheme. Finally, the implementation of this AMC incurs a low overhead of 1.1% of the data rate, and a reasonable complexity, occupying 9.95% of the total transceiver gates on the Field Programmable Gate Array.VDM Verlag, Dudweiler Landstraße 99, 66123 Saarbrücken 160 pp. Englisch.…

Seller Inventory # 9783838352503

Title
Sub-carrier Adaptive Modulation and Coding in OFDM
Author
Farinaz Edalat
Publisher
LAP LAMBERT Academic Publishing Mär 2010
Publication year
2010
Condition
Neu
Binding
Taschenbuch
Language
English
ISBN 10
3838352505
ISBN 13
9783838352503
Item weight
256 grams
Dimensions
220x150x11 mm

buchversandmimpf2000

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