A Node-Based Time Slot Assignment Algorithm for STDMA Wireless Mesh Networks

Author

Weiwei Chen ; Chin-Tau Lea

Author_Institution

Dept. of Electron. & Comput. Eng., Hong Kong Univ. of Sci. & Technol., Kowloon, China

Volume

62

Issue

1

fYear

2013

fDate

Jan. 2013

Firstpage

272

Lastpage

283

Abstract

Most slot assignment algorithms that are proposed for spatial time-division multiple-access (STDMA) mesh networks use a simplified transmission model that does not consider the time-varying fading characteristic of a wireless channel. In addition, these algorithms are usually link based, and scheduling in each slot is fixed and done for links. When the scheduled link is in deep fade or has no traffic, the slot that is given to that link will be wasted. In this paper, we present a node-based slot assignment scheme in which scheduling in each slot is done for nodes and not links. Because a node has multiple links, it can exploit multiuser diversity, i.e., different links have different traffic and fading conditions, to achieve much better performance.

Keywords

diversity reception; fading channels; telecommunication traffic; time division multiple access; wireless mesh networks; STDMA wireless mesh network; fading condition; multiuser diversity; node-based time slot assignment algorithm; spatial time-division multiple-access; time-varying fading characteristic; traffic condition; transmission model; wireless channel; Fading; Interference; Mesh networks; Routing; Throughput; Transmitters; Wireless communication; Multihop routing; multiuser diversity; spatial time-division multiple-access (STDMA) wireless networks; time slot assignment;

fLanguage

English

Journal_Title

Vehicular Technology, IEEE Transactions on

Publisher

ieee

ISSN

0018-9545

Type

jour

DOI

10.1109/TVT.2012.2214492

Filename

6276267