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المؤلفZhang, Jinbei
المؤلفLuoyi Fu
المؤلفWang, Xinbing
المؤلفGuizani, Mohsen
تاريخ الإتاحة2022-11-10T09:47:30Z
تاريخ النشر2013
اسم المنشورGLOBECOM - IEEE Global Telecommunications Conference
المصدرScopus
المصدر2-s2.0-84904092470
معرّف المصادر الموحدhttp://dx.doi.org/10.1109/GLOCOM.2013.6831098
معرّف المصادر الموحدhttp://hdl.handle.net/10576/36213
الملخصThis paper investigates random walk mobility models with location heterogeneity, where different locations may have different neighboring regions.With the assumption of totally n locations, we consider two cases, i.e., full-range locations where nodes situated have the capability to shuffle throughout the network and long-range locations where nodes are allowed for moving to positions nearby within a certain range. In the former situation, with the exact expressions derived, we find location heterogeneity has a critical impact on the first hitting time of random walk, varying from ?(n) to ?(n3) according to different extent of heterogeneity. The result covers, as two special cases, both the classic independent and identically distributed (i.i.d) mobility and traditional random walk as we vary the number of full-range locations. In the latter one, our asymptotic results on both the first crossing time and cover time suggest that they are inversely proportional to the range of neighboring region r (? r-2 and ? r-1, respectively). Furthermore, extensive simulation is conducted to verify our observations and enhance the understanding on the effect of network parameters. 2013 IEEE.
اللغةen
الناشرInstitute of Electrical and Electronics Engineers Inc.
الموضوعCommunication
Computer simulation
Models
Asymptotic results
Cover time
Crossing time
Extensive simulations
First hitting time
Network parameters
Random Walk
Random walk mobility
Random processes
العنوانImpact of location heterogeneity on random walk mobility models
النوعConference Paper
الصفحات365-370
dc.accessType Abstract Only


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