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AN ADAPTIVE FEC SCHEME FOR Ka-BAND SATELLITE COMMUNICATIONS

机译:Ka波段卫星通信的自适应FEC方案

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摘要

Rain attenuation is the major problem for Ka-band satellite communications, and the fading due to rain can be well described by a lognormally distributed, first-order auto regressive model. Forward Error-control Coding (FEC) techniques can be used to reduce the effect of the rain attenuation, but the use of FEC causes a reduction in the bandwidth efficiency.In order to increase the bandwidth efficiency as well as maintain high link availability, an Adaptive Forward Error-control Coding (AFEC) scheme with rain fading prediction is proposed and analyzed in this paper. The results show that AFEC offers a good trade-off between link availability and bandwidth efficiency.
机译:降雨衰减是Ka波段卫星通信的主要问题,而降雨引起的衰落可以用对数正态分布的一阶自回归模型很好地描述。前向错误控制编码(FEC)技术可用于减少降雨衰减的影响,但是FEC的使用会导致带宽效率降低。为了提高带宽效率并保持高链路可用性,提出并分析了带有雨衰预测的自适应前向误差控制编码(AFEC)方案。结果表明,AFEC在链路可用性和带宽效率之间提供了很好的折衷方案。

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