Throughput performance of incremental decode-and-forward using infra-structured relays and Adaptive Modulation and Coding

Author

Alves, Hirley ; Brante, Glauber ; Demo Souza, Richard

Author_Institution

Fed. Univ. of Technol. Parana (UTFPR), Curitiba, Brazil

fYear

2011

fDate

8-11 May 2011

Abstract

In this paper we investigate the combination of Adaptive Modulation and Coding (AMC) and Hybrid Automatic Re- peat reQuest (HARQ) techniques in an orthogonal cooperative scheme using infra-structured (fixed) relays. We consider realistic large scale and small scale path loss models, taking into account the antennas heights and the presence or not of line of sight (LOS). Results demonstrate that large gains in throughput can be obtained when the source and the relay are allowed to use different spectral efficiencies. Moreover, we also propose a discretized AMC scheme with only six levels, which achieves a performance close to optimum.

Keywords

adaptive modulation; automatic repeat request; cooperative communication; decode and forward communication; encoding; AMC scheme; HARQ technique; LOS; adaptive modulation; coding; hybrid automatic repeat request technique; incremental decode-and-forward; infrastructured relay; orthogonal cooperative scheme; path loss models; spectral efficiency; Ad hoc networks; Antennas; Fading; Protocols; Relays; Signal to noise ratio; Throughput;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical and Computer Engineering (CCECE), 2011 24th Canadian Conference on

Conference_Location

Niagara Falls, ON

ISSN

0840-7789

Print_ISBN

978-1-4244-9788-1

Electronic_ISBN

0840-7789

Type

conf

DOI

10.1109/CCECE.2011.6030623

Filename

6030623