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MAC in Motion: Impact of Mobility on the MAC of Drive-Thru Internet
February 2012 (vol. 11 no. 2)
pp. 305-319
ASCII Text
x 
 
Tom H. Luan, Xinhua Ling, Xuemin (Sherman) Shen, "MAC in Motion: Impact of Mobility on the MAC of Drive-Thru Internet," IEEE Transactions on Mobile Computing, vol. 11, no. 2, pp. 305-319, February, 2012.
 
 
BibTex
x
 
@article{ 10.1109/TMC.2011.36,
author = {Tom H. Luan and Xinhua Ling and Xuemin (Sherman) Shen},
title = {MAC in Motion: Impact of Mobility on the MAC of Drive-Thru Internet},
journal ={IEEE Transactions on Mobile Computing},
volume = {11},
number = {2},
issn = {1536-1233},
year = {2012},
pages = {305-319},
doi = {http://doi.ieeecomputersociety.org/10.1109/TMC.2011.36},
publisher = {IEEE Computer Society},
address = {Los Alamitos, CA, USA},
}
 
 
RefWorks Procite/RefMan/Endnote
x 
 
TY - JOUR
JO - IEEE Transactions on Mobile Computing
TI - MAC in Motion: Impact of Mobility on the MAC of Drive-Thru Internet
IS - 2
SN - 1536-1233
SP305
EP319
EPD - 305-319
A1 - Tom H. Luan,
A1 - Xinhua Ling,
A1 - Xuemin (Sherman) Shen,
PY - 2012
KW - Vehicular networks
KW - mobility
KW - distributed coordination function (DCF)
KW - embedded Markov chain.
VL - 11
JA - IEEE Transactions on Mobile Computing
ER -
 
Tom H. Luan, University of Waterloo, Waterloo
Xinhua Ling, Research In Motion, Waterloo
Xuemin (Sherman) Shen, University of Waterloo, Waterloo
The pervasive adoption of IEEE 802.11 radios in the past decade has made possible for the easy Internet access from a vehicle, notably drive-thru Internet. Originally designed for the static indoor applications, the throughput performance of IEEE 802.11 in the outdoor vehicular environment is, however, still unclear especially when a large number of fast-moving users transmitting simultaneously. In this paper, we investigate the performance of IEEE 802.11 DCF in the highly mobile vehicular networks. We first propose a simple yet accurate analytical model to evaluate the throughput of DCF in the large scale drive-thru Internet scenario. Our model incorporates the high-node mobility with the modeling of DCF and unveils the impacts of mobility (characterized by node velocity and moving directions) on the resultant throughput. Based on the model, we show that the throughput of DCF will be reduced with increasing node velocity due to the mismatch between the MAC and the transient high-throughput connectivity of vehicles. We then propose several enhancement schemes to adaptively adjust the MAC in tune with the node mobility. Extensive simulations are carried out to validate the accuracy of the developed analytical model and the effectiveness of the proposed enhancement schemes.

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Index Terms:
Vehicular networks, mobility, distributed coordination function (DCF), embedded Markov chain.
Citation:
Tom H. Luan, Xinhua Ling, Xuemin (Sherman) Shen, "MAC in Motion: Impact of Mobility on the MAC of Drive-Thru Internet," IEEE Transactions on Mobile Computing, vol. 11, no. 2, pp. 305-319, Feb. 2012, doi:10.1109/TMC.2011.36
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