具体讲解了相干带宽和相干时间 内容和原理，让我们更容易理解衰落信道。-Specific on the content and principle of coherent bandwidth and coherent time, let us easier to understand fading channel.

We consider a multicell multiple-input-multipleoutput (MIMO) orthogonal-frequency-division-multiple-access (OFDMA) scenario conforming to the 3GPP Long Term Evolution (LTE) recommendation. Scheduling policies proposed for interference mitigation in L

Ubiquitous Keyboard for Small Mobile Devices: Harnessing Multipath Fading for Fine-Grained Keystroke Localization Junjue Wang, Kaichen Zhao and Xinyu Zhang University of Wisconsin-Madison {jwang283, kzhao25}@wisc.edu, xyzhang@ece.wisc.edu Chunyi