CSMA/CCA: A modified CSMA/CA protocol mitigating the fairness problem for IEEE 802.11 DCF

Xin Wang; Georgios B. Giannakis

doi:10.1109/MSAN.2005.1489949

CSMA/CCA: A modified CSMA/CA protocol mitigating the fairness problem for IEEE 802.11 DCF

Xin Wang, Georgios B. Giannakis

Electrical and Computer Engineering

Research output: Contribution to conference › Paper › peer-review

2 Scopus citations

Abstract

Using a distributed coordination function (DCF), the CSMA/CA protocol reduces collisions and improves the overall throughput in the IEEE802.11 WLAN. To mitigate fairness issues arising with CSMA/CA, we develop a modified version that we term CSMA/CCA (CSMA with copying collision avoidance). A station in CSMA/CCA contends for the shared wireless medium by employing a binary exponential backoff similar to CSMA/CA. Different from CSMA/CA, CSMA/CCA copies the contention window (CW) size piggybacked in the MAC header of an overheard data frame within its basic service set (BSS), and updates its backoff counter according to the new CW size. Simulations illustrate that CSMA/CCA improves fairness relative to CSMA/CA and offers considerable advantages for deployment in the 802.11 standard based WLANs.

Original language	English (US)
Pages	88-95
Number of pages	8
DOIs	https://doi.org/10.1109/MSAN.2005.1489949
State	Published - 2005
Event	2005 1st InternationalConference on Multimedia Services Access Networks, MSAN05 - Orlando, FL, United States Duration: Jun 13 2005 → Jun 15 2005

Other

Other	2005 1st InternationalConference on Multimedia Services Access Networks, MSAN05
Country/Territory	United States
City	Orlando, FL
Period	6/13/05 → 6/15/05

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title = "CSMA/CCA: A modified CSMA/CA protocol mitigating the fairness problem for IEEE 802.11 DCF",

abstract = "Using a distributed coordination function (DCF), the CSMA/CA protocol reduces collisions and improves the overall throughput in the IEEE802.11 WLAN. To mitigate fairness issues arising with CSMA/CA, we develop a modified version that we term CSMA/CCA (CSMA with copying collision avoidance). A station in CSMA/CCA contends for the shared wireless medium by employing a binary exponential backoff similar to CSMA/CA. Different from CSMA/CA, CSMA/CCA copies the contention window (CW) size piggybacked in the MAC header of an overheard data frame within its basic service set (BSS), and updates its backoff counter according to the new CW size. Simulations illustrate that CSMA/CCA improves fairness relative to CSMA/CA and offers considerable advantages for deployment in the 802.11 standard based WLANs.",

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AB - Using a distributed coordination function (DCF), the CSMA/CA protocol reduces collisions and improves the overall throughput in the IEEE802.11 WLAN. To mitigate fairness issues arising with CSMA/CA, we develop a modified version that we term CSMA/CCA (CSMA with copying collision avoidance). A station in CSMA/CCA contends for the shared wireless medium by employing a binary exponential backoff similar to CSMA/CA. Different from CSMA/CA, CSMA/CCA copies the contention window (CW) size piggybacked in the MAC header of an overheard data frame within its basic service set (BSS), and updates its backoff counter according to the new CW size. Simulations illustrate that CSMA/CCA improves fairness relative to CSMA/CA and offers considerable advantages for deployment in the 802.11 standard based WLANs.

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CSMA/CCA: A modified CSMA/CA protocol mitigating the fairness problem for IEEE 802.11 DCF

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