A Simple Sequential Spectrum Sensing Scheme for Cognitive Radio

Computer Science – Information Theory

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

29 pages, 3 figures, submitted to IEEE Transactions on Signal Processing

Scientific paper

Cognitive radio that supports a secondary and opportunistic access to licensed spectrum shows great potential to dramatically improve spectrum utilization. Spectrum sensing performed by secondary users to detect unoccupied spectrum bands, is a key enabling technique for cognitive radio. This paper proposes a truncated sequential spectrum sensing scheme, namely the sequential shifted chi-square test (SSCT). The SSCT has a simple test statistic and does not rely on any deterministic knowledge about primary signals. As figures of merit, the exact false-alarm probability is derived, and the miss-detection probability as well as the average sample number (ASN) are evaluated by using a numerical integration algorithm. Corroborating numerical examples show that, in comparison with fixed-sample size detection schemes such as energy detection, the SSCT delivers considerable reduction on the ASN while maintaining a comparable detection performance.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

A Simple Sequential Spectrum Sensing Scheme for Cognitive Radio does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with A Simple Sequential Spectrum Sensing Scheme for Cognitive Radio, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A Simple Sequential Spectrum Sensing Scheme for Cognitive Radio will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-294448

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.