On throughput and delay scaling with cooperative spectrum sharing

Yang Han, See Ho Ting, Mehul Motani, Ashish Pandharipande

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

9 Citations (Scopus)

Abstract

In this paper, we propose a cooperative spectrum sharing protocol (CSSP) between two overlapping static ad hoc wireless networks where the primary and secondary networks consist of n and m randomly distributed nodes respectively. The secondary network achieves spectrum access along with the primary network by allowing its nodes to relay the primary traffic. Taking advantage of the broadcast nature of wireless channels, the secondary nodes are able to forward primary and secondary packets simultaneously by transmitting a superimposed signal. We analyze the throughput and delay scaling performance of the proposed protocol and show that given m ≥ n, the primary network is able to achieve a per-node throughput scaling which is better than that of a stand-alone network with n nodes. At the same time, the secondary network achieves the same throughput scaling as a stand-alone network with m nodes. We also derive the throughput-delay tradeoff for both the primary and secondary systems in this scenario.

Original languageEnglish
Title of host publication2011 IEEE International Symposium on Information Theory Proceedings
PublisherInstitute of Electrical and Electronics Engineers
Pages821-825
Number of pages5
ISBN (Electronic)978-1-4577-0595-3
ISBN (Print)978-1-4577-0596-0
DOIs
Publication statusPublished - 5 Aug 2011
Externally publishedYes
Event2011 IEEE International Symposium on Information Theory, ISIT 2011 - St. Petersburg, Russian Federation
Duration: 31 Jul 20115 Aug 2011

Conference

Conference2011 IEEE International Symposium on Information Theory, ISIT 2011
Country/TerritoryRussian Federation
CitySt. Petersburg
Period31/07/115/08/11

Keywords

  • Throughput
  • Delay
  • Ad hoc networks
  • Relays
  • Protocols
  • Wireless networks

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