Optimal Packet Length in Delay-Tolerant Networks under Mobile-to-Mobile Fading Channel

Yuan Liu; Sihai Zhang; Ming Zhao; Wuyang Zhou

Wireless Internet. 7th International ICST Conference, WICON 2013, Shanghai, China, April 11-12, 2013, Revised Selected Papers

Research Article

Optimal Packet Length in Delay-Tolerant Networks under Mobile-to-Mobile Fading Channel

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@INPROCEEDINGS{10.1007/978-3-642-41773-3_6,
    author={Yuan Liu and Sihai Zhang and Ming Zhao and Wuyang Zhou},
    title={Optimal Packet Length in Delay-Tolerant Networks under Mobile-to-Mobile Fading Channel},
    proceedings={Wireless Internet. 7th International ICST Conference, WICON 2013, Shanghai, China, April 11-12, 2013, Revised Selected Papers},
    proceedings_a={WICON},
    year={2013},
    month={10},
    keywords={mobile delay-tolerant networks effective data transmission optimal packet length mobile-to-mobile fading channel model},
    doi={10.1007/978-3-642-41773-3_6}
}

Yuan Liu
Sihai Zhang
Ming Zhao
Wuyang Zhou
Year: 2013
Optimal Packet Length in Delay-Tolerant Networks under Mobile-to-Mobile Fading Channel
WICON
Springer
DOI: 10.1007/978-3-642-41773-3_6

Yuan Liu¹^,*, Sihai Zhang^,*, Ming Zhao¹^,*, Wuyang Zhou¹^,*

1: University of Science and Technology of China

*Contact email: jayliu@mail.ustc.edu.cn, shzhang@ustc.edu.cn, zhaoming@ustc.edu.cn, wyzhou@ustc.edu.cn

Abstract

The performance of Delay-Tolerant Networks (DTN) is deeply affected by the node mobility and time-variant wireless channel, by which the joint influence has not been investigated in depth. We analyze the optimal packet length to maximize the effective data throughput, measured by the time spent in successfully transmitting payload data with constant bit rate (CBR) during a given period, by jointly considering the impact of node mobility and wireless channel. Based on a designed simulation model which resembles the environment of mobile nodes under mobile-to-mobile fading channel, we formulate a packet length optimization mechanism to resist packet loss due to channel fading and improve the efficiency of data transmission between mobile DTN nodes, which makes significant sense in multi-hop DTN communication. Theoretically optimal packet lengths for nodes under both environment with fixed velocity and the Random Waypoint (RWP) mobility model with variable velocity are thoroughly deduced and validated by simulation results.

Keywords: mobile delay-tolerant networks effective data transmission optimal packet length mobile-to-mobile fading channel model

Published: 2013-10-08

: http://dx.doi.org/10.1007/978-3-642-41773-3_6