title: Capacity of Heterogeneous Mobile Wireless Networks with D-Delay Transmission Strategy.
abstract: This paper investigates the capacity problem of heterogeneous wireless networks in mobility scenarios. A heterogeneous network model which consists of n normal nodes and m helping nodes is proposed. Moreover, we propose a D-delay transmission strategy to ensure that every packet can be delivered to its destination nodes with limited delay. Different from most existing network schemes, our network model has a novel two-tier architecture. The existence of helping nodes greatly improves the network capacity. Four types of mobile networks are studied in this paper: i.i.d. fast mobility model and slow mobility model in two-dimensional space, i.i.d. fast mobility model and slow mobility model in three-dimensional space. Using the virtual channel model, we present an intuitive analysis of the capacity of two-dimensional mobile networks and three-dimensional mobile networks, respectively. Given a delay constraint D, we derive the asymptotic expressions for the capacity of the four types of mobile networks. Furthermore, the impact of D and m to the capacity of the whole network is analyzed. Our findings provide great guidance for the future design of the next generation of networks.
authors.affiliation: School of Electronic Science and Engineering, National University of Defense Technology, Changsha 410073, China. wufeng_paper@outlook.com.
authors.forename: Feng
authors.initials: F
authors.lastname: Wu
authors.affiliation: School of Electronic Science and Engineering, National University of Defense Technology, Changsha 410073, China. jiangzhu@nudt.edu.cn.
authors.forename: Jiang
authors.initials: J
authors.lastname: Zhu
authors.affiliation: School of Electronic Science and Engineering, National University of Defense Technology, Changsha 410073, China. xzp_paper@163.com.
authors.forename: Zhipeng
authors.initials: Z
authors.lastname: Xi
authors.affiliation: School of Electronic Science and Engineering, National University of Defense Technology, Changsha 410073, China. gaokai000@nudt.edu.cn.
authors.forename: Kai
authors.initials: K
authors.lastname: Gao
keywords: delay constraints; heterogeneous; mobile networks; network capacity