SK Telecom, Seongnam-si 13595, Korea.
Department of Electronic Engineering, Sogang University, Seoul 04107, Korea.
Sensors (Basel). 2020 Jan 14;20(2):469. doi: 10.3390/s20020469.
As the number of users using multimedia sharing services increases, the need to ensure the minimum data rate of wireless users increases. Meanwhile, in the cooperative cognitive radio (CR) network, it is important to provide the quality-of-services for secondary users (SUs) while satisfying the inter-network interference constraint from secondary transmitters to primary users (PUs). Under the limited feedback resource constraint, this paper proposes a feedback bits allocation scheme for the guaranteed bit rate services of SUs while satisfying the inter-network interference constraint. This paper investigates how many feedback bits between the ST and PUs are required to guarantee the minimum data rate of SUs and then proposes a feedback bits allocation scheme that maximizes the average sum rate of SUs while reducing the outage probability of SUs.
随着使用多媒体共享服务的用户数量的增加，确保无线用户的最低数据速率的需求也在增加。同时，在协作认知无线电（CR）网络中，在满足从次要发送器到主要用户（PU）的网络间干扰约束的同时，为次要用户（SU）提供服务质量（QoS）非常重要。在有限的反馈资源约束下，本文提出了一种反馈位分配方案，用于保证满足网络间干扰约束的 SU 的保证比特率服务。本文研究了 ST 和 PUs 之间需要多少反馈位才能保证 SU 的最小数据速率，然后提出了一种反馈位分配方案，该方案在降低 SU 的中断概率的同时最大化 SU 的平均和速率。
