Restricted mobility improves delay-throughput tradeoffs in mobile ad hoc networks
IEEE Transactions on Information Theory
Throughput-delay tradeoff for hierarchical cooperation in ad hoc wireless networks
IEEE Transactions on Information Theory
Scaling laws for overlaid wireless networks: a cognitive radio network versus a primary network
IEEE/ACM Transactions on Networking (TON)
Delay and capacity tradeoff analysis for motioncast
IEEE/ACM Transactions on Networking (TON)
Capacity and delay tradeoffs for ad hoc mobile networks
IEEE Transactions on Information Theory
Optimal throughput-delay scaling in wireless networks - part I: the fluid model
IEEE Transactions on Information Theory
Optimal Throughput–Delay Scaling in Wireless Networks—Part II: Constant-Size Packets
IEEE Transactions on Information Theory
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In this paper, we study the throughput and delay scaling laws over two coexisting mobile networks. The primary network consists of n randomly distributed primary nodes which can operate as if the secondary network is absent. However, the secondary network with a higher density m=n^@b, @b1 is required to adjust its protocol. By considering that both the primary and the secondary networks move according to random walk mobility model, we propose a multi-hop transmission scheme, and show that the secondary network can achieve the same throughput and delay tradeoff scaling law as in stand-alone network D"s(m)=@Q(m@l"s(m)). Furthermore, for primary network, it is shown that the tradeoff scaling law is given by D"p(n)=@Q(nlogn@l"p(n)), when the primary node is chosen as relay node. If the relay node is a secondary node, the scaling law is D"p(n)=@Q(n^@blogn@l"p(n)). The novelties of this paper lie in: (i) detailed study of the delay scaling law for the primary network in the complex scenario where both the primary and the secondary networks are mobile; (ii) the impact of buffer delay on the two networks due to the presence of preservation region. We explicitly analyze the buffer delay and obtain an expression as D"S"""R^I^I(m)=@Q(1/n^@b^-^1a"s(m)).