A huge challenge with directional antennas: Elastic routing

Jangho Yoon, Won Yong Shin, Sang Woon Jeon

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


This paper analyzes the impact and benefits of directional antennas in improving the throughput scaling law of a large wireless network in an information-theoretic perspective. More specifically, we deal with a general scenario where the beamwidth of each node can scale at an arbitrary rate relative to the number of nodes in the network. We then introduce an elastic routing protocol, which enables to increase per-hop distance elastically according to the scalable beamwidth, while maintaining a constant average signal-to-interference-and-noise ratio at the receivers. Our main results indicate that this elastic routing can exhibit a much better throughput, compared to the conventional nearest-neighbor multihop, and eventually leads to a linear throughput scaling. The gain comes from the fat that more source-destination pairs can be activated simultaneously with the boosted antenna gain. In addition, our work is extended to a hybrid network scenario using infrastructure.

Original languageEnglish
Title of host publicationInternational Conference on ICT Convergence
PublisherIEEE Computer Society
Number of pages2
ISBN (Electronic)9781479967865
Publication statusPublished - 2014 Dec 11
Event5th International Conference on Information and Communication Technology Convergence, ICTC 2014 - Busan, Korea, Republic of
Duration: 2014 Oct 222014 Oct 24

Publication series

NameInternational Conference on ICT Convergence
ISSN (Print)2162-1233
ISSN (Electronic)2162-1241


Other5th International Conference on Information and Communication Technology Convergence, ICTC 2014
Country/TerritoryKorea, Republic of

Bibliographical note

Publisher Copyright:
© 2014 IEEE.

All Science Journal Classification (ASJC) codes

  • Information Systems
  • Computer Networks and Communications


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