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This paper presents a transceiver for a long on-chip link in 130-nm CMOS. It features a hybrid-mode transmitter with a current sense amplifier receiver. From the perspective of power efficiency, voltage-mode pre-emphasis is preferred because it reduces the current consumption of the circuit. Based on simulations, an on-chip link in 130-nm CMOS achieves 8 Gb/s over 5-mm long interconnects, while consuming...
Smart antennas (SA) has not been applied widely in 3G except TD-SCDMA. As to the application of SA in CDMA system, we argued that people hold certain incorrect view, especial the reciprocity characteristic. Generally, people consider that only using a set of SA, we can simultaneously realize multiple CDMA channels directional transmission on a single carrier frequency with the same uplink & downlink...
In this paper, the application of smart antennas (SA) in TD-SCDMA is discussed. Generally, people consider that the SA have the SDMA (space division multiple access) effect, based on which the directional beamforming of transmission/receiving can be achieved. That is to say, in TD-SCDMA, on single carrier, simultaneous directional receiving/transmitting is expected to be achieved by using a set of...
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