Abstract
According to the latest version of the IEEE 802.16 standard, the mandatory contention resolution method is the truncated binary exponential backoff, with the initial window size and the maximum window size controlled by the base station. However, the problem of choosing the right set of backoff parameters for the current network level remains unsolved and left as an open issue since this strategy might incur a high collision probability and the channel utilization could be degraded in congested scenario. In this paper, we propose two pragmatic adaptive algorithms, namely semi-dynamic and quasi-dynamic contention resolution schemes, that allow the base station to adjust its backoff window size based on current channel status. By controlling the size of backoff window according to varying network conditions, both schemes are able to achieve higher performance in comparison with the legacy IEEE 802.16 standard.
| Original language | English |
|---|---|
| Article number | 205057 |
| Journal | Eurasip Journal on Wireless Communications and Networking |
| Volume | 2009 |
| DOIs | |
| Publication status | Published - 2009 Aug 24 |
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All Science Journal Classification (ASJC) codes
- Signal Processing
- Computer Science Applications
- Computer Networks and Communications
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On adaptive contention resolution schemes for IEEE 802.16 BWA systems. / Deng, Der Jiunn; Ke, Chih Heng.
In: Eurasip Journal on Wireless Communications and Networking, Vol. 2009, 205057, 24.08.2009.Research output: Contribution to journal › Article
TY - JOUR
T1 - On adaptive contention resolution schemes for IEEE 802.16 BWA systems
AU - Deng, Der Jiunn
AU - Ke, Chih Heng
PY - 2009/8/24
Y1 - 2009/8/24
N2 - According to the latest version of the IEEE 802.16 standard, the mandatory contention resolution method is the truncated binary exponential backoff, with the initial window size and the maximum window size controlled by the base station. However, the problem of choosing the right set of backoff parameters for the current network level remains unsolved and left as an open issue since this strategy might incur a high collision probability and the channel utilization could be degraded in congested scenario. In this paper, we propose two pragmatic adaptive algorithms, namely semi-dynamic and quasi-dynamic contention resolution schemes, that allow the base station to adjust its backoff window size based on current channel status. By controlling the size of backoff window according to varying network conditions, both schemes are able to achieve higher performance in comparison with the legacy IEEE 802.16 standard.
AB - According to the latest version of the IEEE 802.16 standard, the mandatory contention resolution method is the truncated binary exponential backoff, with the initial window size and the maximum window size controlled by the base station. However, the problem of choosing the right set of backoff parameters for the current network level remains unsolved and left as an open issue since this strategy might incur a high collision probability and the channel utilization could be degraded in congested scenario. In this paper, we propose two pragmatic adaptive algorithms, namely semi-dynamic and quasi-dynamic contention resolution schemes, that allow the base station to adjust its backoff window size based on current channel status. By controlling the size of backoff window according to varying network conditions, both schemes are able to achieve higher performance in comparison with the legacy IEEE 802.16 standard.
UR - http://www.scopus.com/inward/record.url?scp=68949093821&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=68949093821&partnerID=8YFLogxK
U2 - 10.1155/2009/205057
DO - 10.1155/2009/205057
M3 - Article
AN - SCOPUS:68949093821
VL - 2009
JO - Eurasip Journal on Wireless Communications and Networking
JF - Eurasip Journal on Wireless Communications and Networking
SN - 1687-1472
M1 - 205057
ER -