A greedy algorithm for goodput-oriented AMC in turbo-coded OFDM

Author

Stupia, Ivan ; Giannetti, Filippo ; Lottici, Vincenzo ; Andreotti, Riccardo ; Vandendorpe, Luc ; Andrea, Aldo N D

Author_Institution

Dept. of Inf. Eng., Univ. of Pisa, Pisa, Italy

fYear

2010

fDate

16-18 June 2010

Firstpage

1

Lastpage

8

Abstract

This paper presents a novel technique for cross-layer adaptive modulation and coding, suited for bit interleaved turbo-coded OFDM packet transmission, and aimed at maximizing the goodput (i.e., the number of data bits delivered without error per unit of time). The optimization problem is formalized through an accurate modeling on the link performance, and a greedy iterative solution is derived. Simulation results demonstrate that performance improvement provided by the proposed method amount to 4 dB with respect to static transmission and about 1.2 dB with respect to adaptive transmission with uniform bit allocation.

Keywords

OFDM modulation; adaptive modulation; greedy algorithms; interleaved codes; iterative methods; modulation coding; optimisation; turbo codes; adaptive coding; adaptive transmission; bit interleaved turbo-coded OFDM packet transmission; cross-layer adaptive modulation; goodput-oriented AMC; greedy algorithm; greedy iterative solution; link performance; optimization problem; performance improvement; static transmission; uniform bit allocation; Modulation; OFDM; Optimization; Resource management; Signal to noise ratio; Turbo codes; Adaptive Modulation and Coding; Greedy Algorithm; Turbo-Codes;

fLanguage

English

Publisher

ieee

Conference_Titel

Future Network and Mobile Summit, 2010

Conference_Location

Florence

Print_ISBN

978-1-905824-16-8

Type

conf

Filename

5722415