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应用科学学报 ›› 2008, Vol. 26 ›› Issue (5): 455-460 .

• 通信工程 • 上一篇    下一篇

电力线通信HomePlug AV标准的比特分配

张圣清, 吴斌, 于东海, 邹采荣   

  1. 东南大学 信息科学与工程学院，江苏 南京 210096

  • 收稿日期:2008-03-07 修回日期:2008-06-14 出版日期:2008-09-27 发布日期:2008-09-27
  • 通信作者: 张圣清

Bit-Loading Algorithm for HomePlug AV Standard in Power Line Communications

ZHANG Sheng-qing, WU Bin, YU Dong-hai, ZOU Cai-rong   

  1. School of Information Science and Engineering, Southeast University, Nanjing 210096, China
  • Received:2008-03-07 Revised:2008-06-14 Online:2008-09-27 Published:2008-09-27
  • Contact: ZHANG Sheng-qing

被引次数

8

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.

关键词: 电力线通信, HomePlug AV, 正交频分复用, 比特分配

Abstract:

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.

Key words:

power line communications, HomePlug AV, OFDM, bit-loading

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