Channel State Information
{"Image DocumentName": "Channel State Information", "Image ImageDescription": "What is CSI? Channel State Information. Data out. OFDM. Transmitter. Channel. Data in. Receiver. In n OFDM system, the received signal over multiple subcarriers is. CSI phy layer information, previous\uf0e0 rate adaptation, we want to explore\u2026explore the possibility of using. [MobiCom 11]Harnessing Frequency Diversity in Wi-Fi Networks. IEEE a/g/n leverage OFDM to provide high throughput. In OFDM, a channel is orthogonally divided into multiple sub channels, namely subcarriers. Data is transmitted in parallel on multiple subcarriers that overlap in frequency. 20or40MHz channels are divided into 312.5kHz bands called subcarriers, each of which sends independent data simultaneously. CSI is a collection of M N matrices Hs in which each describeds the RF path between all pairs of N transmit and M receive antennas for on subcarrier s. CSI. Channel gain. amplitude. phase. Previously, CSI \uf0e0 Rate Adaptation [SIGCOMM\u201910, MobiCom\u201911]", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}