Sensing and communication protocols in cognitive sensor relay networks

Ashish Pandharipande, Yang Han, Ying Wang

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

7 Citations (Scopus)


We present sensing and communication protocols for a dual-hop sensor relay network operating on secondary basis in licensed spectrum. We consider a two-phase communication protocol: in the first phase, the source node transmits to the relay and in the second phase, the relay node transmits to the destination node. A naive sensing protocol is to perform sensing in slots that are scheduled prior to transmission in each phase. This leads to substantial loss in throughput and also can be an issue for delay-sensitive applications. To address this, we propose a sensing protocol wherein sensing is performed at the source node during the second transmission phase. Using a simple reward model, we show that the proposed protocol outperforms the naive protocol while providing better detection performance.

Original languageEnglish
Title of host publication2008 IEEE Sensors, SENSORS 2008
PublisherInstitute of Electrical and Electronics Engineers
Number of pages4
ISBN (Print)9781424425808
Publication statusPublished - 2008
Externally publishedYes
Event7th IEEE Sensors Conference, SENSORS 2008 - Lecce, Italy
Duration: 26 Oct 200829 Oct 2009


Conference7th IEEE Sensors Conference, SENSORS 2008


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