依据有限的用户信道状态信息(CSI)下的小区间干扰消除,提出-种简单的协作单小区传输方案.研究使用不同的有限反馈方案所造成的和速率损失,对提出的反馈比特的分配算法给出具体的闭合表达式,该算法能够使量化误差最小.仿真结果表明:与等比特分配算法相比,提出的自适应比特分配算法能获得更优的系能増益.
By using the inter-cell interference cancellation based on limited user channel state information (CSI) , a simple cooperative single cell transmission scheme is proposed in this paper. The sum-rate loss caused by different limited feedback schemes is investigated. The closed-form expressions of proposed feedback bit allocation scheme is presented, which can minimize the quantization error. Simulation results show that the proposed feedback bits allocation strategy provides significant gain compared with equal bits allocation scheme.