In the context of the urban agglomeration and the rapid development of rail transit, the planning of the Beijing-Tianjin-Hebei Region (BTHR) rail transit 2020 is attracting attention. The BTHR is a natural disaster-prone area and a high-risk area for terrorist attacks; the robustness of the area is critical to the sustainable development of North China. Therefore, it is necessary to analyze the...

The generalized $k$-connectivity of a graph $G$, denoted by $\kappa_k(G)$, is generalization the traditional connectivity. It well known that an important indicator for measuring fault tolerance and reliability interconnection networks. $n$-dimensional folded hypercube $FQ_n$ obtained from $Q_n$ adding edge between any pair vertices with complementary addresses. In this paper, we show $\kappa_3...

We present a theoretical method for a direct evaluation of the average and reliability error exponents in low-density parity-check error-correcting codes using methods of statistical physics. Results for the binary symmetric channel (BSC) are presented for codes of both finite and infinite connectivity.

This paper describes the architectural design, services, and operation monitoring functions of Science Information NETwork 6 (SINET6), a 400-Gigabit Ethernet-based academic backbone network launched on nationwide scale in April 2022. In response to requirements from universities research institutions, SINET upgraded its world-class speed, improved accessibility, enhanced services security, inco...

The m-order connectivity index (G) m of a graph G is     1 2 1 1 2 1 ... ... 1 ( ) i i im m v v v i i i m d d d  G where 1 2 1 ... i i im d d d  runs over all paths of length m in G and i d denotes the degree of vertex i v . Also,        1 2 1 1 2 1 ... ... 1 ( ) i i im m v v v i i i ms d d d X G is its m-sum connectivity index. A dendrimer is an artificially manufactured or synth...

The military environment presents special challenges for wireless mesh networking. In addition to optimal use of scarce radio resources, dependable network operation is critical: given frequent link and topology changes, rapid recovery of connectivity may be vital for mission success. This paper proposes a routing algorithm for wireless mesh networks with the primary goal of maximizing connecti...

In Manet’s Dynamics and Robustness are the key features of the nodes and are governed by several routing protocols such as AODV, DSR and so on. However in the network the growing resource demand leads to resource scarcity. The Node Mobility often leads to the link breakages and high routing overhead decreasing the stability and reliability of the network connectivity. In this context, the paper...

The two-terminal reliability, known as the pair connectedness or connectivity function in percolation theory, may actually be expressed as a product of transfer matrices in which the probability of operation of each link and site is exactly taken into account. When link and site probabilities are p and ρ, it obeys an asymptotic power-law behaviour, for which the scaling factor is the transfer m...