Differentiated service provisioning in the MAC layer of cognitive radio mesh networks

MAC protocols utilising the enhanced distributed channel access in IEEE 802.11-2007 can provide differentiated QoS in wireless networks. However, the performance of high priority traffic can be seriously degraded in the presence of strong noise over the wireless channels. Schemes utilising adaptive...

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Main Authors: How, Kiam Cheng, Ma, Maode, Qin, Yang
Other Authors: School of Electrical and Electronic Engineering
Format: Article
Language:English
Published: 2013
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Online Access:https://hdl.handle.net/10356/104399
http://hdl.handle.net/10220/16993
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1043992020-03-07T14:00:38Z Differentiated service provisioning in the MAC layer of cognitive radio mesh networks How, Kiam Cheng Ma, Maode Qin, Yang School of Electrical and Electronic Engineering DRNTU::Engineering::Electrical and electronic engineering::Wireless communication systems MAC protocols utilising the enhanced distributed channel access in IEEE 802.11-2007 can provide differentiated QoS in wireless networks. However, the performance of high priority traffic can be seriously degraded in the presence of strong noise over the wireless channels. Schemes utilising adaptive modulation and coding technique have also been proposed for QoS provisioning. They can provide limited protection in the presence of noise but are ineffective in a high noise scenario. Although multiple non-overlapped channels exist in the 2.4 GHz and 5 GHz spectrum, most IEEE 802.11-based multi-hop ad hoc networks today use only a single channel at anytime and cannot fully exploit the aggregate bandwidth available in the radio spectrum. By identifying vacant channels through the use of cognitive radios technique, the noise problem can be mitigated by distributing network traffic across multiple vacant channels to reduce the node density per transmission channel. In this paper, we propose the MAC-layer QoS provisioning protocol which combines adaptive modulation and coding with dynamic spectrum access. Simulation results demonstrate that MQPP can achieve better performance in terms of lower delay and higher throughput. 2013-10-29T04:48:03Z 2019-12-06T21:32:01Z 2013-10-29T04:48:03Z 2019-12-06T21:32:01Z 2012 2012 Journal Article How, K. C., Ma, M., & Qin, Y. (2012). Differentiated service provisioning in the MAC layer of cognitive radio mesh networks. International journal of communication networks and distributed systems, 8(3-4), 213-229. https://hdl.handle.net/10356/104399 http://hdl.handle.net/10220/16993 10.1504/IJCNDS.2012.046358 en International journal of communication networks and distributed systems
institution Nanyang Technological University
building NTU Library
country Singapore
collection DR-NTU
language English
topic DRNTU::Engineering::Electrical and electronic engineering::Wireless communication systems
spellingShingle DRNTU::Engineering::Electrical and electronic engineering::Wireless communication systems
How, Kiam Cheng
Ma, Maode
Qin, Yang
Differentiated service provisioning in the MAC layer of cognitive radio mesh networks
description MAC protocols utilising the enhanced distributed channel access in IEEE 802.11-2007 can provide differentiated QoS in wireless networks. However, the performance of high priority traffic can be seriously degraded in the presence of strong noise over the wireless channels. Schemes utilising adaptive modulation and coding technique have also been proposed for QoS provisioning. They can provide limited protection in the presence of noise but are ineffective in a high noise scenario. Although multiple non-overlapped channels exist in the 2.4 GHz and 5 GHz spectrum, most IEEE 802.11-based multi-hop ad hoc networks today use only a single channel at anytime and cannot fully exploit the aggregate bandwidth available in the radio spectrum. By identifying vacant channels through the use of cognitive radios technique, the noise problem can be mitigated by distributing network traffic across multiple vacant channels to reduce the node density per transmission channel. In this paper, we propose the MAC-layer QoS provisioning protocol which combines adaptive modulation and coding with dynamic spectrum access. Simulation results demonstrate that MQPP can achieve better performance in terms of lower delay and higher throughput.
author2 School of Electrical and Electronic Engineering
author_facet School of Electrical and Electronic Engineering
How, Kiam Cheng
Ma, Maode
Qin, Yang
format Article
author How, Kiam Cheng
Ma, Maode
Qin, Yang
author_sort How, Kiam Cheng
title Differentiated service provisioning in the MAC layer of cognitive radio mesh networks
title_short Differentiated service provisioning in the MAC layer of cognitive radio mesh networks
title_full Differentiated service provisioning in the MAC layer of cognitive radio mesh networks
title_fullStr Differentiated service provisioning in the MAC layer of cognitive radio mesh networks
title_full_unstemmed Differentiated service provisioning in the MAC layer of cognitive radio mesh networks
title_sort differentiated service provisioning in the mac layer of cognitive radio mesh networks
publishDate 2013
url https://hdl.handle.net/10356/104399
http://hdl.handle.net/10220/16993
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