Exploiting Location Information for Concurrent Transmissions in Multihop Wireless Networks

Author

Hur, Seung Min ; Mao, Shiwen ; Hou, Y. Thomas ; Nam, Kwanghee ; Reed, Jeffrey H.

Author_Institution

Div. of Electr. & Comput. Eng., Pohang Univ. of Sci. & Technol., Pohang

Volume

58

Issue

1

fYear

2009

Firstpage

314

Lastpage

323

Abstract

In a multihop wireless network environment, it has been shown that IEEE 802.11 media access control (MAC) suffers from a low-throughput problem, which is largely due to the inefficiency in carrier sensing and spatial reuse. In this paper, we present a location-assisted MAC protocol that schedules ldquofeasiblerdquo concurrent transmissions in a multihop wireless network. A simple procedure based on location information is adopted in the proposed MAC to validate the feasibility of a concurrent transmission. Our simulation results show that the proposed scheme can effectively increase the throughput and reduce the average end-to-end delay of multihop wireless networks.

Keywords

access protocols; wireless LAN; IEEE 802.11 media access control; carrier sensing; concurrent transmissions; end-to-end delay; location information; location-assisted MAC protocol; multihop wireless networks; Concurrent transmissions; exposed terminal; media access control; media access control (MAC); multi-hop wireless networks; multihop wireless networks;

fLanguage

English

Journal_Title

Vehicular Technology, IEEE Transactions on

Publisher

ieee

ISSN

0018-9545

Type

jour

DOI

10.1109/TVT.2008.924972

Filename

4510768