Cross-Layer Performance Analysis for CSMA/CA Protocols: Impact of Imperfect Sensing

Cited 14 time in webofscience Cited 0 time in scopus
  • Hit : 280
  • Download : 0
In this paper, the performance of carrier-sense multiple access (CSMA)/collision-avoidance (CA) protocols in the presence of carrier-sensing errors is analyzed. Two types of carrier-sensing errors, i.e., false alarm and miss-detection, are considered, and their impact on the system performance is analyzed using a new CSMA/CA model based on a Markov chain capturing the sensing error at the physical layer. The system throughput and delay as functions of the sensing error probabilities, as well as other CSMA/CA parameters, are obtained, and their sensitivity with respect to a key physical-layer parameter, i.e., the sensing threshold, is analyzed for commonly used energy detectors or matched filters. It is shown that the throughput and delay sensitivity heavily depends on the ratio of the contention window size W to the frame length L, and the throughput is sensitive to the design of the sensing threshold when the ratio W/L is either small or large. The result provides guidelines about how to operate CSMA/CA considering imperfect sensing at the physical layer.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
2010-03
Language
English
Article Type
Article
Keywords

THROUGHPUT ANALYSIS; TRAFFIC CONDITIONS; IEEE 802.15.4; ACCESS; RADIO

Citation

IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, v.59, no.3, pp.1100 - 1108

ISSN
0018-9545
DOI
10.1109/TVT.2009.2036927
URI
http://hdl.handle.net/10203/101801
Appears in Collection
EE-Journal Papers(저널논문)
Files in This Item
There are no files associated with this item.
This item is cited by other documents in WoS
⊙ Detail Information in WoSⓡ Click to see webofscience_button
⊙ Cited 14 items in WoS Click to see citing articles in records_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0