TUTCRIS - Tampereen teknillinen yliopisto

TUTCRIS

An HMM-based spectrum access algorithm for cognitive radio systems

Tutkimustuotosvertaisarvioitu

Yksityiskohdat

AlkuperäiskieliEnglanti
Otsikko2015 International Conference on Information and Communication Technology Research, ICTRC 2015
KustantajaThe Institute of Electrical and Electronics Engineers, Inc.
Sivut116-119
Sivumäärä4
ISBN (painettu)9781479989669
DOI - pysyväislinkit
TilaJulkaistu - 14 heinäkuuta 2015
OKM-julkaisutyyppiA4 Artikkeli konferenssijulkaisussa
TapahtumaInternational Conference on Information and Communication Technology Research - , Yhdistyneet arabiemiirikunnat
Kesto: 1 tammikuuta 2015 → …

Conference

ConferenceInternational Conference on Information and Communication Technology Research
MaaYhdistyneet arabiemiirikunnat
Ajanjakso1/01/15 → …

Tiivistelmä

In this paper, we propose an improved spectrum access algorithm for cognitive radio applications using a Hidden Markov Model (HMM) for learning the primary user channel usage pattern. The proposed scheme maximizes the channel utilization without causing significant interference to the primary user. Simulation results show that the proposed algorithm provides about 3 times improvement in channel utilization compared to the system proposed in [1], with a slight degradation in collision probability. It is also observed that the proposed scheme performance is robust to variations in the primary user behavior.