DocumentCode :
1638
Title :
Optimal Resource Allocation in Random Access Cooperative Cognitive Radio Networks
Author :
Pandian, Mani Bharathi ; Sichitiu, Mihail L. ; Huaiyu Dai
Author_Institution :
Dept. of Electr. & Comput. Eng., North Carolina State Univ., Raleigh, NC, USA
Volume :
14
Issue :
6
fYear :
2015
fDate :
June 1 2015
Firstpage :
1245
Lastpage :
1258
Abstract :
Cooperative cognitive radio networks (CCRNs) incorporates cooperative communication into cognitive radio networks, in which, primary users lease their spectrum to secondary users, and in exchange, the primary users leverage secondary users as cooperative relays to enhance their own throughput. Mobile operators offload their Internet traffic to privately owned Wi-Fi access points (APs), much to the inconvenience of non-cellular users served by the APs. However, by employing the CCRN scheme, the mobile operator can lease a licensed channel to the AP, effectively doubling its capacity. In this paper, we propose an implementation of the CCRN framework applied to IEEE 802.11 WLANs. The cooperation is cast as a two-player bargaining game where the two players are the primary users (users of the mobile operator) and the secondary users (users of the AP before spectrum leasing) who bargain for either throughput share or channel access time share. The optimal resource allocation that ensures efficiency as well as fairness among users is provided by the Nash solution. Simulation results show that the users achieve higher throughput via the proposed CCRN scheme, thus providing the mobile operator (e.g., AT&T) and the private Wi-Fi provider (e.g., a Starbucks coffee shop) with incentives for cooperation.
Keywords :
cognitive radio; cooperative communication; game theory; mobile radio; resource allocation; wireless LAN; CCRN; IEEE 802.11 WLAN; Internet traffic; Nash solution; Wi-Fi access points; Wi-Fi provider; channel access time share; cooperative communication; cooperative relays; mobile operator; mobile operators; optimal resource allocation; random access cooperative cognitive radio networks; secondary users; two-player bargaining game; Bit rate; Cognitive radio; Computational modeling; IEEE 802.11 Standards; Throughput; Time factors; Wireless LAN; Cooperative cognitive radio networks; WLAN optimization; Wi-Fi; game theory; spectrum leasing;
fLanguage :
English
Journal_Title :
Mobile Computing, IEEE Transactions on
Publisher :
ieee
ISSN :
1536-1233
Type :
jour
DOI :
10.1109/TMC.2014.2343968
Filename :
6867320
Link To Document :
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