摘要
针对块对角化(BD)算法无法满足各个用户的需要、串行优化(SO)算法排序复杂、容量较低的问题,提出了一种连续块对角化(SBD)算法。该算法按照各用户的信道条件、服务质量(QoS)需求给用户定义不同的优先级,并按优先级次序进行块对角化,后续用户在对高优先级用户及同优先级用户不干扰的条件下采用块对角化法抵消共信道干扰(CCI),功率分配方式采用等功率分配。数值仿真表明,该算法在不增加计算复杂度的前提下,基本满足各个用户的需求。
To solve the problem that block diagonalization（BD） precoding can not meet the needs of each user and successive optimization（SO） orders and users with high complexity has low capacity,a successive block diagonalization （SBD） precoding is proposed. SBD pre（xMer defines the priority of each user according to its channel state and quali- ty of service（QoS）. The latter users eliminate the CCI with the aid of BD, without interfering the users with higher or equal priorities. The SBD precoder distributes the power equally. The numerical results reveal that SBD precoding algorithm can basically meet the needs of users without extra complexity.
出处
《电讯技术》
北大核心
2011年第4期40-43,共4页
Telecommunication Engineering
基金
国家重大科技专项(2009ZX03007-003)~~
