Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Conference contribution/Paper › peer-review
Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Conference contribution/Paper › peer-review
}
TY - GEN
T1 - Adaptive contention resolution procedure for emerging WiMAX networks
AU - Delicado, J.
AU - Delicado, F.M.
AU - Orozco-Barbosa, L.
AU - Ni, Q.
PY - 2010
Y1 - 2010
N2 - Broadband Wireless Access (BWA) offers QoS-aware broadband access through a wireless medium, being IEEE 802.16 one of the BWA standards. In it, the Base Station (BS) is responsible of allocating the required bandwidth by the rest of nodes, acting as a central controller. The other nodes, Subscriber Stations (SSs), have to send a bandwidth request to give the BS the knowledge about their needs, taking part in a competition through a contention resolution procedure. The requests are located into the uplink subframe, using a period defined by the BS on frame by frame basis, allowing to send data in the rest of the uplink subframe not used by the contention period. So, a tradeoff between these two periods is needed to improve the operation of the system. This paper presents a study on the adaptation of the contention period size per frame by taking into account the number of competing connections. Simulation results confirm that our proposal improves throughput and end-to-end delay by increasing the part of uplink subframe dedicated to sent data.
AB - Broadband Wireless Access (BWA) offers QoS-aware broadband access through a wireless medium, being IEEE 802.16 one of the BWA standards. In it, the Base Station (BS) is responsible of allocating the required bandwidth by the rest of nodes, acting as a central controller. The other nodes, Subscriber Stations (SSs), have to send a bandwidth request to give the BS the knowledge about their needs, taking part in a competition through a contention resolution procedure. The requests are located into the uplink subframe, using a period defined by the BS on frame by frame basis, allowing to send data in the rest of the uplink subframe not used by the contention period. So, a tradeoff between these two periods is needed to improve the operation of the system. This paper presents a study on the adaptation of the contention period size per frame by taking into account the number of competing connections. Simulation results confirm that our proposal improves throughput and end-to-end delay by increasing the part of uplink subframe dedicated to sent data.
KW - IEEE 802.16
KW - QoS
KW - Resource request
KW - WiMAX
KW - contention resolution
U2 - 10.1109/WMNC.2010.5678755
DO - 10.1109/WMNC.2010.5678755
M3 - Conference contribution/Paper
SN - 978-1-4244-8431-7
SP - 1
EP - 6
BT - Wireless and Mobile Networking Conference (WMNC), 2010 Third Joint IFIP
PB - IEEE
ER -