Novel HARQ schemes for MIMO single-hop and Multi-hop relay systems

Author

Rashid, Imran ; So, Daniel K C

Author_Institution

Sch. of Electr. & Electron. Eng., Univ. of Manchester, Manchester, UK

fYear

2010

Firstpage

2523

Lastpage

2527

Abstract

Multiple Input Multiple Output (MIMO) systems use multiple transmit and receive antennas to achieve higher data rates by transmitting multiple independent data systems. Transmission errors can be reduced by using Hybrid Automatic Repeat request (HARQ) combining techniques with MIMO systems. We propose two novel MIMO HARQ combining methods which are based on using pre-combining only and a joint post and pre-combining techniques. In addition to conventional direct transmission, HARQ schemes for MIMO Multi-hop relay systems are also investigated. A novel approach is proposed to deal with the parallel HARQ processes in MIMO relay scenario. The simulation results show that the proposed methods can enhance the overall throughput performance of MIMO Single-hop and multi-hop relay systems.

Keywords

MIMO communication; antenna arrays; automatic repeat request; receiving antennas; transmitting antennas; MIMO HARQ combining methods; MIMO multihop relay systems; MIMO single-hop system; hybrid automatic repeat request combining techniques; joint post techniques; multiple independent data systems; multiple input multiple output system; parallel HARQ processes; precombining techniques; receive antennas; transmission errors; transmit antennas; Automatic repeat request; Delay; Joints; MIMO; Receivers; Relays; Throughput;

fLanguage

English

Publisher

ieee

Conference_Titel

Personal Indoor and Mobile Radio Communications (PIMRC), 2010 IEEE 21st International Symposium on

Conference_Location

Instanbul

Print_ISBN

978-1-4244-8017-3

Type

conf

DOI

10.1109/PIMRC.2010.5671748

Filename

5671748