TY - GEN
T1 - Impact of secondary MAC cooperation on spectrum sharing in cognitive radio networks
AU - Elkourdi, Tariq
AU - Simeone, Osvaldo
PY - 2009
Y1 - 2009
N2 - In this paper, the impact of secondary MAC cooperation on the sum-throughput of multichannel cognitive radio networks is studied. The main goal is twofold: Given the primary and secondary users' duty cycle, (i) investigate the amount of spectrum sharing (i.e., number of secondary users) that maximizes the sum-throughput in the presence of secondary MAC cooperation; (ii) assess the performance gains attainable with cooperation. First, analysis is provided for the idealistic case of perfect sensing, with a simple model for secondary cooperation. Then, for the more realistic case of imperfect sensing, novel cooperative secondary strategies are proposed that are shown to provide relevant performance gains in terms of sum-throughput. Finally, numerical simulation results are provided to evaluate the performance of the cooperative schemes relative to other non-cooperative schemes.
AB - In this paper, the impact of secondary MAC cooperation on the sum-throughput of multichannel cognitive radio networks is studied. The main goal is twofold: Given the primary and secondary users' duty cycle, (i) investigate the amount of spectrum sharing (i.e., number of secondary users) that maximizes the sum-throughput in the presence of secondary MAC cooperation; (ii) assess the performance gains attainable with cooperation. First, analysis is provided for the idealistic case of perfect sensing, with a simple model for secondary cooperation. Then, for the more realistic case of imperfect sensing, novel cooperative secondary strategies are proposed that are shown to provide relevant performance gains in terms of sum-throughput. Finally, numerical simulation results are provided to evaluate the performance of the cooperative schemes relative to other non-cooperative schemes.
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U2 - 10.1109/CISS.2009.5054785
DO - 10.1109/CISS.2009.5054785
M3 - Conference contribution
AN - SCOPUS:70349694234
SN - 9781424427345
T3 - Proceedings - 43rd Annual Conference on Information Sciences and Systems, CISS 2009
SP - 574
EP - 578
BT - Proceedings - 43rd Annual Conference on Information Sciences and Systems, CISS 2009
T2 - 43rd Annual Conference on Information Sciences and Systems, CISS 2009
Y2 - 18 March 2009 through 20 March 2009
ER -