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Interference in a cognitive network with beacon

Publication ,  Conference
Vu, M; Ghassemzadeh, SS; Tarokh, V
Published in: IEEE Wireless Communications and Networking Conference, WCNC
January 1, 2008

We study a cognitive network consisting of multiple cognitive users communicating in the presence of a single primary user. The primary user is located at the center of the network, and the cognitive users are uniformly distributed within a circle around the primary user. Assuming a constant cognitive user density, the radius of this circle will increase with the number of users. We consider a scheme in which the primary transmitter sends a beacon signaling its own transmission. The cognitive users, upon receiving this beacon, stay silent. Because of channel fading, however, there is a non-zero probability that a cognitive user misses the beacon and hence, with a certain activity factor, transmits concurrently with the primary user. Given the location of the primary receiver, we are interested in the total interference caused by the cognitive users to this receiver. In particular, we provide closed-form bounds on the mean and variance of the interference, and relate them to the outage probability on the primary user. These analytical results can help in the design of a cognitive network with beacon. © 2008 IEEE.

Duke Scholars

Published In

IEEE Wireless Communications and Networking Conference, WCNC

DOI

ISSN

1525-3511

ISBN

9781424419968

Publication Date

January 1, 2008

Start / End Page

876 / 881
 

Citation

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Vu, M., Ghassemzadeh, S. S., & Tarokh, V. (2008). Interference in a cognitive network with beacon. In IEEE Wireless Communications and Networking Conference, WCNC (pp. 876–881). https://doi.org/10.1109/wcnc.2008.160
Vu, M., S. S. Ghassemzadeh, and V. Tarokh. “Interference in a cognitive network with beacon.” In IEEE Wireless Communications and Networking Conference, WCNC, 876–81, 2008. https://doi.org/10.1109/wcnc.2008.160.
Vu M, Ghassemzadeh SS, Tarokh V. Interference in a cognitive network with beacon. In: IEEE Wireless Communications and Networking Conference, WCNC. 2008. p. 876–81.
Vu, M., et al. “Interference in a cognitive network with beacon.” IEEE Wireless Communications and Networking Conference, WCNC, 2008, pp. 876–81. Scopus, doi:10.1109/wcnc.2008.160.
Vu M, Ghassemzadeh SS, Tarokh V. Interference in a cognitive network with beacon. IEEE Wireless Communications and Networking Conference, WCNC. 2008. p. 876–881.

Published In

IEEE Wireless Communications and Networking Conference, WCNC

DOI

ISSN

1525-3511

ISBN

9781424419968

Publication Date

January 1, 2008

Start / End Page

876 / 881