Evaluation of Time-Space Efficiency in CSMA/CA and Slotted Vanets

Author

Scopigno, Riccardo ; Cozzetti, Hector Agustin

Author_Institution

Ist. Superiore Mario Boella, Turin, Italy

fYear

2010

fDate

6-9 Sept. 2010

Firstpage

1

Lastpage

5

Abstract

Recently slotted protocols have been demonstrated to work also in a distributed way and in a vehicular scenario. In particular one of them, MS-Aloha, has shown interesting scalability features. Despite a comparative analysis between CSMA/CA (IEEE 802.11p) and MS-Aloha has already been proposed in a simplified topology, a deep analysis on the efficiency of the two protocols has not been achieved: in this paper such analysis is split into the two separate domains of space and time. Results confirm that the slotted approach is more efficient and deterministic thanks to a joint time-space coordination driven by spatial slot assignment and reuse.

Keywords

ad hoc networks; carrier sense multiple access; mobile radio; protocols; telecommunication network topology; CSMA/CA; MS-Aloha; slotted Vanet; slotted protocol; time-space efficiency; topology; vehicular ad hoc network; vehicular scenario; Computational modeling; Measurement; Multiaccess communication; Peer to peer computing; Protocols; Scalability; Unicast;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference Fall (VTC 2010-Fall), 2010 IEEE 72nd

Conference_Location

Ottawa, ON

ISSN

1090-3038

Print_ISBN

978-1-4244-3573-9

Electronic_ISBN

1090-3038

Type

conf

DOI

10.1109/VETECF.2010.5594410

Filename

5594410