IEEE Transactions on Wireless Communications,
vol. 11, no. 9, pp. 3112-3125, Sep. 2012.
Characterizing Decentralized Wireless Networks with
Temporal Correlation in the Low Outage Regime
Kapil Gulati (1),
Radha K. Ganti (2),
Jeff G. Andrews (1)
Brian L. Evans (1),
Srikathyayani Srikanteswara (3)
Wireless Networking and Communications Group,
Engineering Science Building,
The University of Texas at Austin,
Austin, TX 78712 USA
(2) The Indian Institute of Technology Madras, Chennai 600036, India.
(3) System Technology Lab, Intel, Hillsborough, Oregon USA.
Paper Draft (updated June 30, 2012)
Interference Modeling and Mitigation Research at UT Austin
Interference Modeling and Mitigation Toolbox
Communication in decentralized wireless networks is limited by interference.
Because transmissions typically last for more than a single contention time
slot, interference often exhibits a strong statistical dependence over time
that results in temporally correlated communication performance.
The temporal dependence in interference increases as user mobility decreases
and/or the total transmission time increases.
We propose a network model that spans the extremes of temporal independence
to long-term temporal dependence.
Using the proposed model, closed-form single hop communication performance
metrics are derived that are asymptotically exact in the low outage regime.
The primary contributions are
Simulation results verify the closed-form expressions derived in this
paper and we demonstrate up to 2x gain in network throughput and
reliability by optimizing certain parameters of medium access control
layer protocol in view of the temporal correlations.
- deriving the joint temporal statistics of network interference and
showing that it follows a multivariate symmetric alpha stable
- utilizing the joint interference statistics to derive closed-form
expressions for local delay, throughput outage probability, and
average network throughput; and
- using the joint interference statistics to redefine and analyze
the network transmission capacity that captures the
throughput-delay-reliability tradeoffs in single hop transmissions.
COPYRIGHT NOTICE: All the documents on this server
have been submitted by their authors to scholarly journals or conferences
as indicated, for the purpose of non-commercial dissemination of
The manuscripts are put on-line to facilitate this purpose.
These manuscripts are copyrighted by the authors or the journals in which
they were published.
You may copy a manuscript for scholarly, non-commercial purposes, such
as research or instruction, provided that you agree to respect these
Last Updated 12/18/13.