Counting k-Hop Paths in the Random Connection Model
- Authors
- Kartun-Giles, Alexander P.; Kim, Sunwoo
- Issue Date
- May-2018
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- Random geometric graphs; random connection model; stochastic geometry; broadcast; range-free localisation
- Citation
- IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, v.17, no.5, pp.3201 - 3210
- Indexed
- SCIE
SCOPUS
- Journal Title
- IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS
- Volume
- 17
- Number
- 5
- Start Page
- 3201
- End Page
- 3210
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/16980
- DOI
- 10.1109/TWC.2018.2808290
- ISSN
- 1536-1276
- Abstract
- We study, via combinatorial enumeration, the probability of k-hop connection between two nodes in a wireless multihop network. This addresses the difficulty of providing an exact formula for the scaling of hop counts with Euclidean distance without first making a sort of mean field approximation, which in this case assumes all nodes in the network have uncorrelated degrees. We therefore study the mean and variance of the number of k-hop paths between two vertices x, y in the random connection model, which is a random geometric graph where nodes connect probabilistically rather than deterministically according to a critical connection range. In the example case where Rayleigh fading is modeled, the variance of the number of three hop paths is in fact composed of four separate decaying exponentials, one of which is the mean, which decays slowest as parallel to x - y parallel to -> infinity. These terms each correspond to one of exactly four distinct substructures which can form when pairs of paths intersect in a specific way, for example at exactly one node. Using a sum of factorial moments, this relates to the path existence probability. We also discuss a potential application of our results in bounding the broadcast time.
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