Mobility increases the capacity of ad-hoc wireless networks

Author

Grossglauser, Matthias ; Tse, David

Author_Institution

AT&T Res. Labs., Florham Park, NJ, USA

Volume

3

fYear

2001

fDate

2001

Firstpage

1360

Abstract

The capacity of ad-hoc wireless networks is constrained by the mutual interference of concurrent transmissions between nodes. We study a model of an ad-hoc network where n nodes communicate in random source-destination pairs. These nodes are assumed to be mobile. We examine the per-session throughput for applications with loose delay constraints, such that the topology changes over the time-scale of packet delivery. Under this assumption, the per-user throughput can increase dramatically when the nodes are mobile rather than fixed. This improvement can be achieved by exploiting node mobility as a type of multiuser diversity

Keywords

channel capacity; delays; diversity reception; land mobile radio; network topology; packet radio networks; radiofrequency interference; ad-hoc wireless networks; concurrent transmissions; delay constraints; mobile nodes; multiuser diversity; mutual interference; network capacity; network nodes; node mobility; packet delivery time-scale; per-session throughput; random source-destination; topology changes; Ad hoc networks; Cellular networks; Delay; Diversity methods; Diversity reception; Fading; Interference constraints; Network topology; Throughput; Wireless networks;

fLanguage

English

Publisher

ieee

Conference_Titel

INFOCOM 2001. Twentieth Annual Joint Conference of the IEEE Computer and Communications Societies. Proceedings. IEEE

Conference_Location

Anchorage, AK

ISSN

0743-166X

Print_ISBN

0-7803-7016-3

Type

conf

DOI

10.1109/INFCOM.2001.916631

Filename

916631