An Unbound Network Coding for Extended IEEE 802.16j Multihop Relay Network

IEEE 802.16j is an amendment to the IEEE 802.16 broadband wireless access standard to enable the operation of multihop relay stations (RSs). It aims to enhance the coverage, per user throughput of IEEE 802.16e. Comparing with a base station (BS), RS does not need a wireline backhaul and has much low...

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Main Authors: Adisak Sukul, J. Morris Chang, Pattarasinee Bhattarakosol
Format: Article
Language:English
Published: Wiley 2012-03-01
Series:International Journal of Distributed Sensor Networks
Online Access:https://doi.org/10.1155/2012/370309
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author Adisak Sukul
J. Morris Chang
Pattarasinee Bhattarakosol
author_facet Adisak Sukul
J. Morris Chang
Pattarasinee Bhattarakosol
author_sort Adisak Sukul
collection DOAJ
description IEEE 802.16j is an amendment to the IEEE 802.16 broadband wireless access standard to enable the operation of multihop relay stations (RSs). It aims to enhance the coverage, per user throughput of IEEE 802.16e. Comparing with a base station (BS), RS does not need a wireline backhaul and has much lower hardware complexity. Moreover, using RSs can significantly reduce the deployment cost of the system. Unfortunately, there are some tradeoffs in the case of multi-hop RSs. Subscriber stations (SSs), located in a long distance, are suffered from the bottleneck of multi-hop, throughput degradation, and increasing of end-to-end delay. This paper proposes a network coding-based relay scheme for multi-hop relay networks, called NC-BR. It allows RSs to combine two wireless backhaul transmissions into one using the network coding technique. This paper also proposes an improved OFDMA frame structure design for the multi-hop relay network. This technique provides higher utilization for the relay zone by reorganizing the RSs transmission sequence. The analysis and simulation results confirm that the proposed scheme can enhance the throughput gain up to 140% and reduce the end-to-end delay by up to 83%. The simulation results also show that the proposed scheme can reduce the jitter by up to 58%.
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spelling doaj-art-b45a61e6f50240acb8cb40638619a4b72025-02-03T05:48:36ZengWileyInternational Journal of Distributed Sensor Networks1550-14772012-03-01810.1155/2012/370309An Unbound Network Coding for Extended IEEE 802.16j Multihop Relay NetworkAdisak Sukul0J. Morris Chang1Pattarasinee Bhattarakosol2 Department of Mathematics, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand Department of Electrical and Computer Engineering, Iowa State University, Ames, IA 50011, USA Department of Mathematics, Faculty of Science, Chulalongkorn University, Bangkok 10330, ThailandIEEE 802.16j is an amendment to the IEEE 802.16 broadband wireless access standard to enable the operation of multihop relay stations (RSs). It aims to enhance the coverage, per user throughput of IEEE 802.16e. Comparing with a base station (BS), RS does not need a wireline backhaul and has much lower hardware complexity. Moreover, using RSs can significantly reduce the deployment cost of the system. Unfortunately, there are some tradeoffs in the case of multi-hop RSs. Subscriber stations (SSs), located in a long distance, are suffered from the bottleneck of multi-hop, throughput degradation, and increasing of end-to-end delay. This paper proposes a network coding-based relay scheme for multi-hop relay networks, called NC-BR. It allows RSs to combine two wireless backhaul transmissions into one using the network coding technique. This paper also proposes an improved OFDMA frame structure design for the multi-hop relay network. This technique provides higher utilization for the relay zone by reorganizing the RSs transmission sequence. The analysis and simulation results confirm that the proposed scheme can enhance the throughput gain up to 140% and reduce the end-to-end delay by up to 83%. The simulation results also show that the proposed scheme can reduce the jitter by up to 58%.https://doi.org/10.1155/2012/370309
spellingShingle Adisak Sukul
J. Morris Chang
Pattarasinee Bhattarakosol
An Unbound Network Coding for Extended IEEE 802.16j Multihop Relay Network
International Journal of Distributed Sensor Networks
title An Unbound Network Coding for Extended IEEE 802.16j Multihop Relay Network
title_full An Unbound Network Coding for Extended IEEE 802.16j Multihop Relay Network
title_fullStr An Unbound Network Coding for Extended IEEE 802.16j Multihop Relay Network
title_full_unstemmed An Unbound Network Coding for Extended IEEE 802.16j Multihop Relay Network
title_short An Unbound Network Coding for Extended IEEE 802.16j Multihop Relay Network
title_sort unbound network coding for extended ieee 802 16j multihop relay network
url https://doi.org/10.1155/2012/370309
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