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| Closed-form Solution of End-to-end Delay with Out-of-order Delivery in MANETs under Random Mobility Models |
| Wang Xiao-fei① Cai Ying①② Li Zhuo①② |
①(Computer School, Beijing Information Science & Technology University, Beijing 100101, China)
②(Beijing Key Laboratory of Internet Culture and Digital Dissemination Research, Beijing Information Science & Technology University, Beijing 100101, China) |
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Abstract Due to the limitation of the closed-form analysis of end-to-end delay in mobile ad hoc networks, this paper develops an effective modeling scheme for delay in the networks where the delivery is out-of-order and the two-hop relay algorithm with single copy is involved, and presents a rigorous theoretical upper bound. First, for various random mobility models, it is proved that the inter-meeting time between mobile nodes can be expressed in a unified expression. Furthermore, taking the medium competition, the traffic competition and the queuing delay into consideration, the critical time period of delay is defined accurately, and then the queuing service is modeled. Finally, an exact upper bound of the end-to-end delay is derived in closed-form. Simulation results validate that the theoretical delay matches the experimental data closely.
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Received: 29 January 2013
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Corresponding Authors:
Cai Ying
E-mail: ycai@bistu.edu.cn
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2014, Vol. 36 
