TY - GEN
T1 - Making 802.11 DCF near-optimal
T2 - 2013 10th Annual IEEE Communications Society Conference on Sensing and Communication in Wireless Networks, SECON 2013
AU - Lee, Jinsung
AU - Lee, Hojin
AU - Yi, Yung
AU - Chong, Song
AU - Nardelli, Bruno
AU - Chiang, Mung
PY - 2013
Y1 - 2013
N2 - This paper proposes a new wireless MAC protocol called Optimal DCF (O-DCF). O-DCF modifies the rule of adapting CSMA parameters, such as backoff time and transmission length, based on a function of the supply-demand differential captured by the local queue length. O-DCF is fully compatible with 802.11 hardware, so that it can be easily implemented only with a simple device driver update. O-DCF is inspired by the recent theoretical studies on queue-based CSMA for high throughput and fairness. O-DCF effectively bridges the gap between theory and practice, implemented and tested in an off-the-shelf 802.11 chipset. Through extensive simulations and real experiments with a 16-node wireless network testbed, we evaluate the performance of O-DCF and show that it outperforms other competitive ones, such as 802.11 DCF, optimal CSMA, and DiffQ for various scenarios.
AB - This paper proposes a new wireless MAC protocol called Optimal DCF (O-DCF). O-DCF modifies the rule of adapting CSMA parameters, such as backoff time and transmission length, based on a function of the supply-demand differential captured by the local queue length. O-DCF is fully compatible with 802.11 hardware, so that it can be easily implemented only with a simple device driver update. O-DCF is inspired by the recent theoretical studies on queue-based CSMA for high throughput and fairness. O-DCF effectively bridges the gap between theory and practice, implemented and tested in an off-the-shelf 802.11 chipset. Through extensive simulations and real experiments with a 16-node wireless network testbed, we evaluate the performance of O-DCF and show that it outperforms other competitive ones, such as 802.11 DCF, optimal CSMA, and DiffQ for various scenarios.
UR - http://www.scopus.com/inward/record.url?scp=84890867761&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84890867761&partnerID=8YFLogxK
U2 - 10.1109/SAHCN.2013.6644966
DO - 10.1109/SAHCN.2013.6644966
M3 - Conference contribution
AN - SCOPUS:84890867761
SN - 9781479902309
T3 - 2013 IEEE International Conference on Sensing, Communications and Networking, SECON 2013
SP - 86
EP - 94
BT - 2013 IEEE International Conference on Sensing, Communications and Networking, SECON 2013
PB - IEEE Computer Society
Y2 - 24 June 2013 through 27 June 2013
ER -