Title :
Connectivity of mobile linear networks with dynamic node population and delay constraint
Author_Institution :
Dept. of Electr. Eng., Univ. of Arkansas, Fayetteville, AR, USA
fDate :
9/1/2009 12:00:00 AM
Abstract :
The connectivity properties of a mobile linear network with high speed mobile nodes and strict delay constraint are investigated. A new mobility model is developed to represent the steady state node distribution, and it accurately captures the statistical properties of random node arrival, time-varying node speed, and the distinct behaviors of nodes following different traffic patterns.With the mobility model, the statistical properties of network connectivity are studied and identified. Unlike most previous works that do not consider the impacts of transmission latency, which is critical for real time applications, this paper identifies the quantitative relationship between network connectivity and delay constraint. The results are applicable to both delay constrained networks and delay tolerant networks. The connectivity analysis is performed with a novel geometry-assisted analytical method. Exact connectivity probability expressions are developed by using the volumes of a hypercube intersected by a hyperplane, and a hyperpyramid. The geometry-assisted analytical method significantly simplifies the connectivity analysis.
Keywords :
delays; geometry; mobile radio; probability; statistical analysis; telecommunication traffic; delay constraint network; delay tolerant network; dynamic node population; geometry-assisted analytical method; mobile linear network; mobility model; network traffic; probability expression; statistical property; steady state node distribution; Ad hoc networks; Delay effects; Disruption tolerant networking; Hypercubes; Network topology; Performance analysis; Steady-state; Telecommunication traffic; Traffic control; Vehicle dynamics; Network connectivity, mobile linear network, delay constraint, n-cube;
Journal_Title :
Selected Areas in Communications, IEEE Journal on
DOI :
10.1109/JSAC.2009.090917