The Energy Efficiency Analysis of HARQ in Hybrid Relaying Systems

Author

Qi, Yinan ; Hoshyar, Reza ; Imran, Muhammad ; Tafazolli, Rahim

Author_Institution

CCSR, Univ. of Surrey, Guildford, UK

fYear

2011

fDate

15-18 May 2011

Firstpage

1

Lastpage

5

Abstract

In this paper, we analyze the Hybrid Automatic Repeat re-Quest (HARQ) protocols used in conjunction with hybrid relaying schemes from the energy efficiency perspective. In cooperative communications, hybrid relaying strategy allows the relay to dynamically switch between different forwarding schemes according to its decoding status and provide either transmit or receive diversity to the users depending on the current channel condition. The energy efficiency analysis takes the circuitry energy consumption of all involved nodes into consideration and the energy efficiency is optimized in terms of energy per bit by manipulating the activation time and the transmission energy.

Keywords

automatic repeat request; cooperative communication; HARQ; circuitry energy consumption; cooperative communications; energy efficiency analysis; hybrid automatic repeat request protocols; hybrid relaying strategy; hybrid relaying systems; receive diversity; transmit diversity; Automatic repeat request; Decoding; Energy consumption; Energy efficiency; Noise; Protocols; Relays;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference (VTC Spring), 2011 IEEE 73rd

Conference_Location

Yokohama

ISSN

1550-2252

Print_ISBN

978-1-4244-8332-7

Type

conf

DOI

10.1109/VETECS.2011.5956564

Filename

5956564