A MAC/PHY cross-layer design for efficient ARQ protocols

Author

Kim, Dongmyoung ; Choi, Youngkyu ; Jin, Sunggeun ; Han, Kwanghun ; Choi, Sunghyun

Author_Institution

Sch. of Electr. Eng. & INMC, Seoul Nat. Univ., Seoul

Volume

12

Issue

12

fYear

2008

fDate

12/1/2008 12:00:00 AM

Firstpage

909

Lastpage

911

Abstract

In many wireless data systems, automatic repeat request (ARQ) and hybrid automatic repeat request (HARQ) work independently. In this paper, we introduce a new ARQ feedback scheme called Cross-Layer ARQ (CL-ARQ), where ARQ closely interoperates with HARQ by making use of the acknowledgement of HARQ internally. By doing so, CL-ARQ not only removes the overhead for ARQ acknowledgement messages, but also improves the average delivery delay and TCP throughput. Especially, when the entities in charge of HARQ and ARQ are located far apart geographically, CL-ARQ remarkably outperforms the legacy scheme.

Keywords

access protocols; automatic repeat request; radio networks; transport protocols; ARQ acknowledgement messages; ARQ protocols; MAC/PHY cross-layer; TCP throughput; average delivery delay; feedback scheme; hybrid automatic repeat request; wireless data systems; Automatic repeat request; Cross layer design; Data systems; Delay; Feedback; Fluctuations; Media Access Protocol; Physical layer; Throughput; Wireless communication; Automatic repeat request (ARQ), hybrid ARQ (HARQ), cross-layer approach;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2008.081259

Filename

4720248