Adaptive Throughput Maximization for Adaptive Modulation and Coding Systems

Author

Su, Hsuan-Jung ; Lin, Tsungnan

Author_Institution

Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei

fYear

2005

fDate

5-5 Oct. 2005

Firstpage

406

Lastpage

410

Abstract

It is well known that for delay-tolerant data services, adaptive transmission with the modulation and coding scheme (MCS) adjusted according to the instantaneous channel condition can maximize the throughput. In time-varying channels, the performance degradation of adaptive transmission caused by delayed or inaccurate channel condition feedback can be mitigated with the use of hybrid automatic repeat request (HARQ). With these two techniques jointly implemented, the selection of MCS becomes a complex process highly dependent on channel and system characteristics, and is usually difficult to be optimized analytically. In this paper, we investigate the conditions for throughput-maximizing MCS selection, then propose an algorithm capable of adaptively fulfilling these conditions during transmission

Keywords

adaptive codes; adaptive modulation; automatic repeat request; channel coding; data communication; time-varying channels; adaptive modulation; adaptive throughput maximization; channel condition feedback; coding systems; delay-tolerant data services; hybrid automatic repeat request; time-varying channels; Automatic repeat request; Decoding; Degradation; Delay; Error analysis; Feedback; Modulation coding; Throughput; Time-varying channels; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 2005 Asia-Pacific Conference on

Conference_Location

Perth, WA

Print_ISBN

0-7803-9132-2

Type

conf

DOI

10.1109/APCC.2005.1554090

Filename

1554090