RESIDUAL NOISE AFTER INTERFERENCE CANCELLATION ON FADING MULTIPATH CHANNELS
作者： R. G. Gallager
DOI: 10.1007/978-1-4615-6281-8_3
关键词: Computer science 、 Electronic engineering 、 Communication channel 、 Fading 、 Matched filter 、 Interference (communication) 、 Additive white Gaussian noise 、 Waveform 、 Decoding methods 、 Single antenna interference cancellation
摘要: A popular information theoretic technique for multiaccess communication on a white Gaussian noise channel is to decode the users one by one. After each user decoded, its encoded waveform subtracted from received signal, thus cancelling interference that task of decoding subsequent users. This not directly applicable fading multipath channels common wireless communication. The problem what should be signal response user’s waveform. Since unknown, best can done subtract convolution with an estimate channel. leaves residual term which difference between true and estimated point this paper show negligibly small typical situations.
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