SS-CDMA灵活无线网络:小区内上行，无需传输功率控制

12th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications. PIMRC 2001. Proceedings (Cat. No.01TH8598) Pub Date : 2001-09-30 DOI:10.1109/PIMRC.2001.965252

S. Kameda, Kouichi Takahashi, Y. Iizuka, H. Nakase, K. Tsubouchi

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引用次数: 0

摘要

提出了一种基于近似同步(AS) CDMA的扩频码分多址(SS-CDMA)柔性无线网络的小区内上行链路。由于AS-CDMA不存在同信道干扰，因此不需要复杂的传输功率控制(TPC)。我们已经评估了在不同载波频率偏移和期望与不期望信号比(DUR)情况下的误码率(BER)性能。在瑞利衰落信道2用户环境下，当期望信号载波频偏为0.3 ppm，误码率为10/sup -3/时，DUR为- 32db。因此，使用具有两步开环TPC技术的AS-CDMA，小区内上行链路是可用的。在此基础上，利用带稳频合成器的AS-CDMA技术实现了不带TPC技术的小区内上行链路。

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SS-CDMA flexible wireless network: intracell uplink without transmission power control

We have proposed an intracell uplink of a spread-spectrum code-division multiple-access (SS-CDMA) flexible wireless network based on approximately synchronized (AS) CDMA. Since the AS-CDMA has no co-channel interference, complicated transmission power control (TPC) is not required. We have evaluated bit error rate (BER) performances in cases of varying carrier frequency offset and desired-to-undesired signal ratio (DUR). Under 2-user environment on Rayleigh fading channel with 1-path profile, at the undesired signal carrier frequency offset of 0.3 ppm and the BER of 10/sup -3/, the DUR is found to be -32 dB. Thus, using the AS-CDMA with a 2-step open-loop TPC technique, the intracell uplink is available. Furthermore, the intracell uplink without TPC technique is expected using the AS-CDMA with the received signal frequency stabilized synthesizer.

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12th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications. PIMRC 2001. Proceedings (Cat. No.01TH8598)

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