摘要
研究了HPAV标准中发送功率谱密度和比特误码率上限不变情况下传输比特数最大化的自适应算法.针对HPAV标准的特点,首先给出了最优的比特分配算法,然后在分析和仿真的基础上,提出一种基于预分配的低运算复杂度最优比特分配算法.通过仿真验证了该算法可达到最优的比特分配结果,运算复杂度比已有算法降低了将近一半.
In this paper, an efficient bit-loading algorithm is proposed for HPAV specification, aiming at maximization of data rate under the constraint of transmission power spectrum density and bit error rate. The algorithm is based on pre-allocation and adopts a new iterative method to reduce computational complexity. Simulation results show that the proposed algorithm can achieve optimal allocations while computational complexity is about half of existing methods.
出处
《应用科学学报》
CAS
CSCD
北大核心
2008年第5期455-460,共6页
Journal of Applied Sciences
基金
国家科技攻关资助项目(No.2002BA110C)
