Connectivity of Heterogeneous Wireless Networks

@article{Ren2011ConnectivityOH,
  title={Connectivity of Heterogeneous Wireless Networks},
  author={Wei Ren and Qing Zhao and Ananthram Swami},
  journal={IEEE Transactions on Information Theory},
  year={2011},
  volume={57},
  pages={4315-4332}
}
We address the percolation-based connectivity of large-scale ad hoc heterogeneous wireless networks, where secondary users exploit channels temporarily unused by primary users and the existence of a communication link between two secondary users depends on not only the distance between them but also the transmitting and receiving activities of nearby primary users. We introduce the concept of connectivity region defined as the set of density pairs-the density of secondary users and the density… 
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References

SHOWING 1-10 OF 38 REFERENCES
Connectivity and Latency in Large-Scale Wireless Networks with Unreliable Links
  • Z. Kong, E. Yeh
  • Computer Science
    IEEE INFOCOM 2008 - The 27th Conference on Computer Communications
  • 2008
TLDR
It is shown that due to the dynamic behavior of links, a delay is incurred for any transmission even when propagation delay is ignored, and the delay scales linearly with the Euclidean distance between the sender and the receiver when the network is in the subcritical phase.
On the minimum node degree and connectivity of a wireless multihop network
TLDR
This paper derives an analytical expression that enables the determination of the required range r0 that creates, for a given node density ρ, an almost surely k--connected network and investigates two fundamental characteristics of a wireless multi -hop network: its minimum node degree and its k--connectivity.
Impact of interferences on connectivity in ad hoc networks
TLDR
It is proved that if /spl gamma/ is nonzero but small enough, there exist node spatial densities for which the network contains a large (theoretically infinite) cluster of nodes, enabling distant nodes to communicate in multiple hops.
Closing the Gap in the Capacity of Wireless Networks Via Percolation Theory
An achievable bit rate per source-destination pair in a wireless network of n randomly located nodes is determined adopting the scaling limit approach of statistical physics. It is shown that
Connectivity, Percolation, and Information Dissemination in Large-Scale Wireless Networks with Dynamic Links
TLDR
In the pres ence of a non-negligible propagation delay, the delay for information dissemination scales linearly with the Euclidean distance in both the subcritical and supercritical regimes, with the rates for the linear scaling being differe nt in the two regimes.
On the Connectivity and Multihop Delay of Ad Hoc Cognitive Radio Networks
TLDR
Using theories and techniques from continuum percolation and ergodicity, the scaling law of the minimum multihop delay with respect to the source-destination distance is established.
Percolation in the signal to interference ratio graph
TLDR
This paper considers a variation of Poisson percolation models in which a connection between two points depends not only on their Euclidean distance, but also on the positions of all other points of the point process.
Critical Power for Asymptotic Connectivity in Wireless Networks
In wireless data networks each transmitter's power needs to be high enough to reach the intended receivers, while generating minimum interference on other receivers sharing the same channel. In
Connectivity properties of a packet radio network model
TLDR
A model of a packet radio network in which transmitters with range R are distributed according to a two-dimensional Poisson point process with density D is examined and it is shown that pi R/sup 2/D, the expected number of nearest neighbors of a transmitter, must grow logarithmically with the area of the network.
Power control in cognitive radio networks: how to cross a multi-lane highway
TLDR
The difference between detecting primary signals and detecting spectrum opportunities is revealed, and the complex relationship between physical layer spectrum sensing and MAC layer throughput is demonstrated, and it is revealed that reliable opportunity detection is achieved in the two extreme regimes.
...
1
2
3
4
...