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ZJUS-A
Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2004, Vol. 5 Issue ( 9): 10-    DOI: 10.1631/jzus.2004.1087
    
On service differentiation in mobile Ad Hoc networks
ZHANG Shun-liang, YE Cheng-qing
College of Computer Science & Engineering, Zhejiang University, Hangzhou 310027, China
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Abstract  A network model is proposed to support service differentiation for mobile Ad Hoc networks by combining a fully distributed admission control approach and the DIFS based differentiation mechanism of IEEE802.11. It can provide different kinds of QoS (Quality of Service) for various applications. Admission controllers determine a committed bandwidth based on the reserved bandwidth of flows and the source utilization of networks. Packets are marked when entering into networks by markers according to the committed rate. By the mark in the packet header, intermediate nodes handle the received packets in different manners to provide applications with the QoS corresponding to the pre-negotiated profile. Extensive simulation experiments showed that the proposed mechanism can provide QoS guarantee to assured service traffic and increase the channel utilization of networks.

Key words： Mobile Ad Hoc networks      IEEE802.11      DIFS      Service differentiation      QoS (Quality of Service),Computer     
Received: 25 June 2003     
CLC:  TP393  
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ZHANG Shun-liang
YE Cheng-qing
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ZHANG Shun-liang, YE Cheng-qing. On service differentiation in mobile Ad Hoc networks. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2004, 5( 9): 10-.

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http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.2004.1087     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2004/V5/I 9/10

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