Universal behavior of load distribution in scale-free networks.
Abstrak
We study a problem of data packet transport in scale-free networks whose degree distribution follows a power law with the exponent gamma. Load, or "betweenness centrality," of a vertex is the accumulated total number of data packets passing through that vertex when every pair of vertices sends and receives a data packet along the shortest path connecting the pair. It is found that the load distribution follows a power law with the exponent delta approximately 2.2(1), insensitive to different values of gamma in the range, 2 < gamma < or = 3, and different mean degrees, which is valid for both undirected and directed cases. Thus, we conjecture that the load exponent is a universal quantity to characterize scale-free networks.
Topik & Kata Kunci
Penulis (3)
K. Goh
B. Kahng
Dong Chul Kim
Akses Cepat
- Tahun Terbit
- 2001
- Bahasa
- en
- Total Sitasi
- 1133×
- Sumber Database
- Semantic Scholar
- DOI
- 10.1103/PhysRevLett.87.278701
- Akses
- Open Access ✓