TY - GEN
T1 - Effects of mobility and primary appearance probability on spectrum handoff
AU - Baroudi, Uthman
AU - Alfadhly, Abdullah
PY - 2011
Y1 - 2011
N2 - This paper is an attempt to understand better the impact of users mobility and primary appearance on the spectrum handoff rate and connection reliability for the Cognitive Radio (CR) Ad hoc Network. Spectrum handoff is a new type of handoff caused by the appearance of the original user of the spectrum or simply by the movement of a cognitive user to an area where its currently used band is in use. We exploit the spectrum sensing capability in each CR and we propose three random techniques to access free channels while avoiding/minimizing the hidden terminal problem. Extensive simulation experiments have been conducted to evaluate the system performance, in particular, handoff rate, session continuity distribution, and missing handoff. Furthermore, a simple queuing model is suggested. Finally, simulation results are compared with analytical results which show a good matching.
AB - This paper is an attempt to understand better the impact of users mobility and primary appearance on the spectrum handoff rate and connection reliability for the Cognitive Radio (CR) Ad hoc Network. Spectrum handoff is a new type of handoff caused by the appearance of the original user of the spectrum or simply by the movement of a cognitive user to an area where its currently used band is in use. We exploit the spectrum sensing capability in each CR and we propose three random techniques to access free channels while avoiding/minimizing the hidden terminal problem. Extensive simulation experiments have been conducted to evaluate the system performance, in particular, handoff rate, session continuity distribution, and missing handoff. Furthermore, a simple queuing model is suggested. Finally, simulation results are compared with analytical results which show a good matching.
UR - https://www.scopus.com/pages/publications/80052020071
U2 - 10.1109/VETECS.2011.5956791
DO - 10.1109/VETECS.2011.5956791
M3 - Conference contribution
AN - SCOPUS:80052020071
SN - 9781424483310
T3 - IEEE Vehicular Technology Conference
BT - 2011 IEEE 73rd Vehicular Technology Conference, VTC2011-Spring - Proceedings
ER -