A Dynamic QoS Model for improving the throughput of Wideband Spectrum Sharing in Cognitive Radio Networks

被引:1
作者
Manivannan, K. [1 ]
Ravichandran, C. G. [2 ]
Durai, B. Sakthi Karthi [3 ]
机构
[1] PSNA Coll Engn & Technol, Dept Comp Sci & Engn, Dindigul 624622, Tamil Nadu, India
[2] SCAD Inst Technol, Tiruppur 641664, Tamil Nadu, India
[3] Latha Madhavan Engn Coll, Dept Informat Technol, Madurai, Tamil Nadu, India
来源
KSII TRANSACTIONS ON INTERNET AND INFORMATION SYSTEMS | 2014年 / 8卷 / 11期
关键词
wideband sensing based spectrum sharing; wideband opportunistic spectrum access; cognitive radio networks; Quality of Service; POWER ALLOCATION; CHANNELS; ACCESS;
D O I
10.3837/tiis.2014.11.005
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
This paper considers a wideband cognitive radio network (WCRN) which can simultaneously sense multiple narrowband channels and thus aggregate the detected available channels for transmission and studies the ergodic throughput of the WCRN that operated under: the wideband sensing-based spectrum sharing (WSSS) scheme and the wideband opportunistic spectrum access (WOSA) scheme. In our analysis, besides the average interference power constraint at PU, the average transmit power constraint of SU is also considered for the two schemes and a novel cognitive radio sensing frame that allows data transmission and spectrum sensing at the same time is utilized, and then the maximization throughput problem is solved by developing a gradient projection method. Finally, numerical simulations are presented to verify the performance of the two proposed schemes.
引用
收藏
页码:3731 / 3750
页数:20
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