Toeplitz-structured Sequences for Rendezvous in Dynamic Spectrum Access

Konferenz: European Wireless 2014 - 20th European Wireless Conference
14.05.2014 - 16.05.2014 in Barcelona, Spain

Tagungsband: European Wireless 2014

Seiten: 5Sprache: EnglischTyp: PDF

Persönliche VDE-Mitglieder erhalten auf diesen Artikel 10% Rabatt

Costa Neto, Francisco Hugo; Guerreiro, Igor M.; Maciel, Tarcisio F. (Wireless Telecommunications Research Group (GTEL), Federal University of Ceara (UFC), Fortaleza, Ceara, Brazil)

This work addresses the problem of asynchronous rendezvous in dynamic spectrum access (DSA) networks. Considering channel-hopping techniques in this context, two (or more) users scan through a list of available channels as to detect and establish communication with each other. In this work, we propose a new rendezvous sequence based on the vectorization of a Toeplitz matrix built from a list of channels available for rendezvous. We provide results showing that the proposed sequence ensures rendezvous, has low mean time to rendezvous (TTR) for two users, and a bounded maximum TTR. For the proposed sequence, we show that the mean TTR, maximum TTR, and the probability of rendezvous on each of the available channels have exact closed-form expressions.