A Throughput Model for CSMA/CA with a Cross-Layer Payload-Dropping Optimization

Author

Jayabal, Raymond J. ; Lau, Chiew Tong

Author_Institution

Inst. for Infocomm Res., A*STAR, Singapore, Singapore

fYear

2012

fDate

6-9 May 2012

Firstpage

1

Lastpage

5

Abstract

In this paper, we formulate the throughput of a spatially-optimized CSMA/CA in two interference-limited co-channel cells, and validate it using statistics obtained via simulation. This special variant of the protocol incorporates a MAC/PHY cross-layer mechanism which aborts the reception of the payload portions of frames from co-channel cells in interference-limited multi-cell deployments. For physical transceivers relying solely on preamble detection for carrier sensing, this optimization adequately mitigates the exposed node syndrome, thereby allowing nodes to enjoy nearly the maximum throughput as provided by CSMA/CA in single cell or carrier-sensing threshold (CST) isolated scenarios.

Keywords

access protocols; carrier sense multiple access; radiofrequency interference; CSMA/CA; MAC/PHY cross-layer mechanism; carrier-sensing threshold; cross-layer payload-dropping optimization; protocol; throughput model; two interference-limited co-channel cells; Analytical models; Multiaccess communication; Payloads; Peer to peer computing; Protocols; Sensors; Throughput;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference (VTC Spring), 2012 IEEE 75th

Conference_Location

Yokohama

ISSN

1550-2252

Print_ISBN

978-1-4673-0989-9

Electronic_ISBN

1550-2252

Type

conf

DOI

10.1109/VETECS.2012.6240147

Filename

6240147