Multiple Powers Allocation Strategy under Sensing/Transmission Frame Structure in Cognitive Radio Networks
Dao-Yuan Ren, Shou-Yi Yang, Fang Wang, Liu-Jie Ji
Available Online December 2016.
- https://doi.org/10.2991/icwcsn-16.2017.48How to use a DOI?
- cognitive radio; power allocation; spectrum sensing; spectrum sharing; throughput maximization
- In the traditional opportunity spectrum access cognitive radio system(OSA), the state of the primary user is assumed to be constant during the entire frame duration, the secondary user accesses licensed band with proper power only when primary user is detected idle. In fact, the state of the primary user may changes at any time, on the premise of ensure that the quality of service of primary user and secondary user to make full use of the channel, we proposed a new power allocation strategy based on the four states and three power sunder sensing/transmission frame structure. In this strategy, secondary user is assigned to three different types of access power for the four kinds of states in the process of sensing, considering the effect of activity of the primary user to the system throughput, adopting frame structure that maximize the sensing period and the data transmission period at the same time, to avoid the sensing-throughput tradeoff, aiming to achieve the maximize throughput. The simulation results show that compared to the new power allocation strategy in this paper and conventional power allocation strategy, proposed strategy in this paper has obvious improvement for throughput. In addition, the proposed system throughput is associated with the target detection probability and the primary user's signal- to-noise ratio received at the secondary user.
- Open Access
- This is an open access article distributed under the CC BY-NC license.
Cite this article
TY - CONF AU - Dao-Yuan Ren AU - Shou-Yi Yang AU - Fang Wang AU - Liu-Jie Ji PY - 2016/12 DA - 2016/12 TI - Multiple Powers Allocation Strategy under Sensing/Transmission Frame Structure in Cognitive Radio Networks PB - Atlantis Press SP - 220 EP - 226 SN - 2352-538X UR - https://doi.org/10.2991/icwcsn-16.2017.48 DO - https://doi.org/10.2991/icwcsn-16.2017.48 ID - Ren2016/12 ER -