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Front. Inform. Technol. Electron. Eng.  2013, Vol. 14 Issue (11): 873-886    DOI: 10.1631/jzus.C1200334
    
Mobility assisted spectrum aware routing protocol for cognitive radio ad hoc networks
Omid Abedi, Reza Berangi
Department of Computer Engineering, Iran University of Science and Technology, Tehran, Iran
Mobility assisted spectrum aware routing protocol for cognitive radio ad hoc networks
Omid Abedi, Reza Berangi
Department of Computer Engineering, Iran University of Science and Technology, Tehran, Iran
 全文: PDF 
摘要： We propose a mobility assisted spectrum aware routing (MASAR) protocol for cognitive radio ad hoc networks (CRAHNs), providing robustness to primary user activity and node mobility. This protocol allows nodes to collect spectrum information during a spectrum management interval followed by a transmission period. Cognitive users discover next hops based on the collected spectrum and mobility information. Using a beaconless mechanism, nodes obtain the mobility information and spectrum status of their neighbors. A geographical routing scheme is adopted to avoid performance degradation specially due to the mobility of the nodes and the activity of the primary users. Our scheme uses two approaches to find either short or stable routes. Since mobility metrics have a significant role in the selection of the next hop, both approaches use a reactive mobility update process assisted by mobility prediction to avoid location errors. MASAR protocol performance is investigated through simulations of different scenarios and compared with that of the most similar protocol, CAODV. The results indicate that MASAR can achieve significant reduction in control overhead as well as improved packet delivery in highly mobile networks.
关键词： Cognitive radio;  Ad hoc routing;  Geographical routing;  Mobility prediction;  Spectrum awareness    
Abstract: We propose a mobility assisted spectrum aware routing (MASAR) protocol for cognitive radio ad hoc networks (CRAHNs), providing robustness to primary user activity and node mobility. This protocol allows nodes to collect spectrum information during a spectrum management interval followed by a transmission period. Cognitive users discover next hops based on the collected spectrum and mobility information. Using a beaconless mechanism, nodes obtain the mobility information and spectrum status of their neighbors. A geographical routing scheme is adopted to avoid performance degradation specially due to the mobility of the nodes and the activity of the primary users. Our scheme uses two approaches to find either short or stable routes. Since mobility metrics have a significant role in the selection of the next hop, both approaches use a reactive mobility update process assisted by mobility prediction to avoid location errors. MASAR protocol performance is investigated through simulations of different scenarios and compared with that of the most similar protocol, CAODV. The results indicate that MASAR can achieve significant reduction in control overhead as well as improved packet delivery in highly mobile networks.
Key words: Cognitive radio    Ad hoc routing    Geographical routing    Mobility prediction    Spectrum awareness
收稿日期: 2012-11-23 出版日期: 2013-11-06
CLC:  TP393  
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Omid Abedi
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引用本文:

Omid Abedi, Reza Berangi. Mobility assisted spectrum aware routing protocol for cognitive radio ad hoc networks. Front. Inform. Technol. Electron. Eng., 2013, 14(11): 873-886.

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http://www.zjujournals.com/xueshu/fitee/CN/10.1631/jzus.C1200334    或    http://www.zjujournals.com/xueshu/fitee/CN/Y2013/V14/I11/873

[1] Yi-hu Xu, Myoung-Seob Lim. Spectrum sensing using multiple dual polarization antennas for cognitive radio systems in microcell environments[J]. Front. Inform. Technol. Electron. Eng., 2013, 14(10): 792-798.
[2] Hui HUANG, Zhao-yang ZHANG, Peng CHENG, Ai-ping HUANG, Pei-liang QIU. Cooperative spectrum sensing in cognitive radio systems with limited sensing ability[J]. Front. Inform. Technol. Electron. Eng., 2010, 11(3): 175-186.
[3] Guang-xi ZHU, Xue-bing PEI, Dai-ming QU, Jian LIU, Qing-ping WANG, Gang SU. Joint bandwidth allocation and power control with interference constraints in multi-hop cognitive radio networks[J]. Front. Inform. Technol. Electron. Eng., 2010, 11(2): 139-150.