摘要
功率控制技术是CDMA系统中减小多址干扰的一项关键技术。针对TDD-CDMA系统的多速率业务,提出了一种功率速率联合控制算法,速率控制保证不同业务的服务质量要求,通过线性优化过程获得最大化流量时的功率速率分配。仿真结果表明这一算法是一种近似的最优化功率速率联合控制方案,能够有效地提高系统的总容量,优化系统性能。
Power control is a key technique in CDMA mobile system. A joint power and rate control algorithm is presented to address TDD-CDMA multi-rate services. Rate control ensures the QoS requirement for different services, and power distribution and rate allocation are adjusted by linear optimization to achieve the maximized throughput for CDMA system. The simulation results show that the joint power and rate control algorithm is approximately optimal, and multi-rate system performance can be improved effectively by this algorithm.
出处
《微电子学与计算机》
CSCD
北大核心
2008年第2期32-35,共4页
Microelectronics & Computer
基金
国家自然科学基金委创新研究群体基金项目(60521002)
科技部国家科技攻关计划项目(2005BA908B02)
