creator Iyer, Swapna advisor Zhou, Chi With the growth in wireless technology, and the ever increasing use of the available spectrum by radio systems, Spectrum Access and Sharing is highly desired in order to completely utilize the available band of frequencies and thus improve the overall Spectrum E ciency. Cognitive Radio can be used as a technology to improve the spectrum utilization in case of Public Safety Systems. With FCC reserving a 10 MHz band of dedicated spectrum allocated in the 700 MHz band for Broadband Communications, the need to use this band e ciently is necessary. In this thesis, we propose a method by which the available spectrum can be shared among multiple cognitive users in the presence of a high priority cognitive user. We use a Cyclostationary Signature to improve the detection method by other cognitive users. By using this signature we can achieve faster and reliable detection which in turn will improve the Spectrum Utilization. Submitted by Dana Lamparello (dlampare@iit.edu) on 2012-03-12T15:02:33Z No. of bitstreams: 2 Thesis.pdf: 985249 bytes, checksum: 421ab60d2d43b00b498002b0749f0cfc (MD5) title page with signature.PDF: 14627 bytes, checksum: 67ca3ef2c29c2166b8a49c72e979db44 (MD5) Made available in DSpace on 2012-03-12T15:02:33Z (GMT). No. of bitstreams: 2 Thesis.pdf: 985249 bytes, checksum: 421ab60d2d43b00b498002b0749f0cfc (MD5) title page with signature.PDF: 14627 bytes, checksum: 67ca3ef2c29c2166b8a49c72e979db44 (MD5) Previous issue date: 2011-12 M.S. in Electrical Engineering, December 2011 2011-11-21 2011-12 http://hdl.handle.net/10560/2559 en Thesis born digital application/pdf In Copyright http://rightsstatements.org/page/InC/1.0/ Restricted Access ECE / Electrical and Computer Engineering Illinois Institute of Technology Affiliated department