Mobility-aware spatial interference cancellation for mobile ad hoc networks

Jihong Park, Kaibin Huang, Sungyoon Cho, Dongku Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Interference limits the throughput of a mobile ad hoc network (MANET). Multi-antennas can be employed at a node for interference cancellation besides attaining array gain. Spatial interference cancellation requires each node to estimate the interference channels, which is potentially inaccurate due to node mobility. As a result, maximizing the network capacity requires optimally allocating spatial degrees of freedom (DoF) to cancel interference and enhance link reliability based on the node mobility. This paper addresses this issue for a MANET with Poisson distributed transmitters and employing zero-forcing beam for spatial interference cancellation. Specifically, the residual interference power for each node from partially canceled interferers is characterized as a function of Doppler frequency and the number of DoF for interference cancellation is shown to decrease with the Doppler frequency. The adaption of spatial interference cancellation to mobility is observed to significantly improve the network performance in terms of both outage probability and capacity compared with the case without adaptation.

Original languageEnglish
Title of host publication2010 International Conference on Information and Communication Technology Convergence, ICTC 2010
Pages57-62
Number of pages6
DOIs
Publication statusPublished - 2010 Dec 1
Event2010 International Conference on Information and Communication Technology Convergence, ICTC 2010 - Jeju, Korea, Republic of
Duration: 2010 Nov 172010 Nov 19

Publication series

Name2010 International Conference on Information and Communication Technology Convergence, ICTC 2010

Other

Other2010 International Conference on Information and Communication Technology Convergence, ICTC 2010
CountryKorea, Republic of
CityJeju
Period10/11/1710/11/19

All Science Journal Classification (ASJC) codes

  • Information Systems
  • Computer Networks and Communications

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  • Cite this

    Park, J., Huang, K., Cho, S., & Kim, D. (2010). Mobility-aware spatial interference cancellation for mobile ad hoc networks. In 2010 International Conference on Information and Communication Technology Convergence, ICTC 2010 (pp. 57-62). [5674722] (2010 International Conference on Information and Communication Technology Convergence, ICTC 2010). https://doi.org/10.1109/ICTC.2010.5674722