TY - GEN
T1 - Optimal spectrum sharing for contention-based cognitive radio wireless networks
AU - Wadhwa, Manish
AU - Xin, Chunsheng
AU - Song, Min
AU - Diawara, Norou
AU - Zhao, Yanxiao
AU - Kaur, Komalpreet
PY - 2012
Y1 - 2012
N2 - Fixed spectrum assignment policy lead to the need for a more dynamic approach to spectrum access. This paper analyzes the optimal dynamic spectrum sharing possibilities among primary and secondary users in cognitive radio networks, where the channel access for both primary and secondary users in the same channel is contention-based. We assume slotted time. Fixed and random allocations of primary users in the channels are considered for contention-based study. This means that in a fixed allocation, the number of primary users is fixed in a specific channel; their number may vary in different channels. Random allocation on the other hand considers primary users randomly allocated in different channels in each time slot. Given the number of channels and primary users, we find the optimal number of secondary users that obtains maximum throughput in spectrum sharing with primary users. The results obtained provide low complexity solutions for implementation in practical systems.
AB - Fixed spectrum assignment policy lead to the need for a more dynamic approach to spectrum access. This paper analyzes the optimal dynamic spectrum sharing possibilities among primary and secondary users in cognitive radio networks, where the channel access for both primary and secondary users in the same channel is contention-based. We assume slotted time. Fixed and random allocations of primary users in the channels are considered for contention-based study. This means that in a fixed allocation, the number of primary users is fixed in a specific channel; their number may vary in different channels. Random allocation on the other hand considers primary users randomly allocated in different channels in each time slot. Given the number of channels and primary users, we find the optimal number of secondary users that obtains maximum throughput in spectrum sharing with primary users. The results obtained provide low complexity solutions for implementation in practical systems.
KW - Cognitive radio network
KW - optimization
KW - spectrum management
KW - spectrum sharing
UR - http://www.scopus.com/inward/record.url?scp=84865570634&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84865570634&partnerID=8YFLogxK
U2 - 10.1007/978-3-642-31869-6_16
DO - 10.1007/978-3-642-31869-6_16
M3 - Conference contribution
AN - SCOPUS:84865570634
SN - 9783642318689
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 187
EP - 196
BT - Wireless Algorithms, Systems, and Applications - 7th International Conference, WASA 2012, Proceedings
T2 - 7th International Conference on Wireless Algorithms, Systems, and Applications, WASA 2012
Y2 - 8 August 2012 through 10 August 2012
ER -