Dynamic Subchannel Assignment-Based Cross-Layer MAC and Network Protocol for Multihop Ad Hoc Networks
The paper presents a dynamic subchannel assignment algorithm based on orthogonal frequency division multiple access technology operating in the time division duplexing and a new cross-layer design based on a proposed routing protocol jointed with the MAC protocol. The proposed dynamic sub-channel as...
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Series: | Journal of Computer Networks and Communications |
Online Access: | http://dx.doi.org/10.1155/2013/962643 |
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doaj-1282bf8af1364596ac72eb855d732a5d2020-11-25T00:23:31ZengHindawi LimitedJournal of Computer Networks and Communications2090-71412090-715X2013-01-01201310.1155/2013/962643962643Dynamic Subchannel Assignment-Based Cross-Layer MAC and Network Protocol for Multihop Ad Hoc NetworksKhanh Nguyen Quang0Van Duc Nguyen1Hyunseung Choo2School of Electronics and Telecommunications, Hanoi University of Science and Technology, Hanoi, VietnamSchool of Electronics and Telecommunications, Hanoi University of Science and Technology, Hanoi, VietnamSungkyunkwan University, School of Information & Communication Engineering, Republic of KoreaThe paper presents a dynamic subchannel assignment algorithm based on orthogonal frequency division multiple access technology operating in the time division duplexing and a new cross-layer design based on a proposed routing protocol jointed with the MAC protocol. The proposed dynamic sub-channel assignment algorithm provides a new interference avoidance mechanism which solves several drawbacks of existing radio resource allocation techniques in wireless networks using OFDMA/TDD, such as the hidden node and exposed node problems, mobility, and cochannels interference in frequency (CCI). Besides, in wireless networks, when a route is established, the radio resource allocation problems may decrease the end to end performance proportionally with the length of each route. The contention at MAC layer may cause the routing protocol at network layer to respond by finding new routes and routing table updates. The proposed routing protocol is jointed with the MAC protocol based on dynamic sub-channel assignment to ensure that the quality of service in multihop ad hoc networks is significantly improved.http://dx.doi.org/10.1155/2013/962643 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Khanh Nguyen Quang Van Duc Nguyen Hyunseung Choo |
spellingShingle |
Khanh Nguyen Quang Van Duc Nguyen Hyunseung Choo Dynamic Subchannel Assignment-Based Cross-Layer MAC and Network Protocol for Multihop Ad Hoc Networks Journal of Computer Networks and Communications |
author_facet |
Khanh Nguyen Quang Van Duc Nguyen Hyunseung Choo |
author_sort |
Khanh Nguyen Quang |
title |
Dynamic Subchannel Assignment-Based Cross-Layer MAC and Network Protocol for Multihop Ad Hoc Networks |
title_short |
Dynamic Subchannel Assignment-Based Cross-Layer MAC and Network Protocol for Multihop Ad Hoc Networks |
title_full |
Dynamic Subchannel Assignment-Based Cross-Layer MAC and Network Protocol for Multihop Ad Hoc Networks |
title_fullStr |
Dynamic Subchannel Assignment-Based Cross-Layer MAC and Network Protocol for Multihop Ad Hoc Networks |
title_full_unstemmed |
Dynamic Subchannel Assignment-Based Cross-Layer MAC and Network Protocol for Multihop Ad Hoc Networks |
title_sort |
dynamic subchannel assignment-based cross-layer mac and network protocol for multihop ad hoc networks |
publisher |
Hindawi Limited |
series |
Journal of Computer Networks and Communications |
issn |
2090-7141 2090-715X |
publishDate |
2013-01-01 |
description |
The paper presents a dynamic subchannel assignment algorithm based on orthogonal frequency division multiple access technology operating in the time division duplexing and a new cross-layer design based on a proposed routing protocol jointed with the MAC protocol. The proposed dynamic sub-channel assignment algorithm provides a new interference avoidance mechanism which solves several drawbacks of existing radio resource allocation techniques in wireless networks using OFDMA/TDD, such as the hidden node and exposed node problems, mobility, and cochannels interference in frequency (CCI). Besides, in wireless networks, when a route is established, the radio resource allocation problems may decrease the end to end performance proportionally with the length of each route. The contention at MAC layer may cause the routing protocol at network layer to respond by finding new routes and routing table updates. The proposed routing protocol is jointed with the MAC protocol based on dynamic sub-channel assignment to ensure that the quality of service in multihop ad hoc networks is significantly improved. |
url |
http://dx.doi.org/10.1155/2013/962643 |
work_keys_str_mv |
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1725356550219890688 |