hperlan系统在DCA和FCA下的性能

Proceedings of 8th International Symposium on Personal, Indoor and Mobile Radio Communications - PIMRC '97 Pub Date : 1997-09-01 DOI:10.1109/PIMRC.1997.627079

B. Jones, D. Skellern

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引用次数: 7

摘要

HIPERLAN是ETSI采用的高速无线局域网标准。它在5ghz频段的150mhz频谱中工作，提供多达5个TDD通道，以高达23.5 Mb/s的速度进行双工数据传输。本文表明，在存在共信道单元和充分利用链路的情况下，HIPERLAN在使用其dca型清晰信道评估(CCA)方案时表现不佳，并且只有在最佳fca型信道分配下才能实现目标性能水平。造成这种不良性能的两个主要因素是:在共通道细胞存在的情况下，HIPERLAN没有足够的通道来满足C/I限制;CCA方案导致了较差的信道分布。

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HIPERLAN system performance under DCA and FCA

HIPERLAN is a high speed wireless LAN standard adopted by the ETSI. It operates in 150 MHz of spectrum in the 5 GHz band, with up to five TDD channels provided for duplex data transmission at up to 23.5 Mb/s. This paper shows that in the presence of cochannel cells and full link utilisation, HIPERLAN performs poorly when using its DCA-type clear channel assessment (CCA) scheme, and that the target performance levels are only achievable under optimal FCA-type channel assignments. Two main factors contribute to this poor performance: HIPERLAN has insufficient channels to meet C/I constraints in the presence of cochannel cells; and the CCA scheme results in poor channel distributions.

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Proceedings of 8th International Symposium on Personal, Indoor and Mobile Radio Communications - PIMRC '97

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