On the Capacity of a CSMA-Based Multi-Hop Linear Network with Poisson Distributed Nodes

Author

Buratti, Chiara ; Zanella, Alberto ; Verdone, Roberto

Author_Institution

Univ. of Bologna, Bologna, Italy

fYear

2011

fDate

15-18 May 2011

Firstpage

1

Lastpage

5

Abstract

In this paper we consider a multi-hop ad hoc network where nodes are distributed according to a Poisson point process (PPP) over a line. A slotted Carrier Sense Multiple Access protocol is used to transmit data from a source to a destination node, through multiple relays. Due to the hidden terminal node problem interferences are present and reduce the network capacity. Performance is evaluated in terms of mean ergodic capacity of the generic link. Results show that there exists an optimum value of nodes´ density maximizing the performance and this value changes when varying the source-destination distance.

Keywords

ad hoc networks; carrier sense multiple access; protocols; radiofrequency interference; stochastic processes; CSMA capacity; Poisson distributed nodes; Poisson point process; destination node; hidden terminal node problem interference; mean ergodic capacity; multihop ad hoc network; multihop linear network; multiple relays; network capacity; slotted carrier sense multiple access protocol; source node; source-destination distance; Ad hoc networks; Approximation methods; Interference; Multiaccess communication; Protocols; Receivers; Sensors;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference (VTC Spring), 2011 IEEE 73rd

Conference_Location

Yokohama

ISSN

1550-2252

Print_ISBN

978-1-4244-8332-7

Type

conf

DOI

10.1109/VETECS.2011.5956563

Filename

5956563