The design and performance analysis of inter-chip wireless communication system in instrument based on 60GHz

Abstract

60GHz wireless communication technology in millimeter wave band has become the first choice of Gbps-level short-range wireless communication technologies, with the advantages of several GHz broadband spectrums, up to 10W transmit power, using low cost CMOS devices and so on. It could provide a great possibility to achieve high-speed wireless communication inter-chip in instrument or between instruments. 60GHz high-speed wireless communication system that is applied to inter-chip interconnect in instrument has been designed in this paper, which adopts 60GHz pulse communication system that has smaller effect on multipath interference, builds communication model and designs 60GHz band pulse based on the 31th-order derivative of Gaussian. Simultaneously, Rake receiving mechanism is introduced to 60GHz pulse communication, and bit error rate (BER) would be reduced by utilizing the multipath generated in the crate. Through the 60GHz pulse communication BER simulation using Rake receiver, it is demonstrated that whichever Rake receiver has little effect on the BER performance of 60GHz pulse. For the LOS channel, ARake has the best performance but its complexity is too high. SRake has better performance and more complex structure than PRake when using the same numbers of tap-weight for the NLOS channel. Therefore, the tap-weight number of SRake and PRake should be selected appropriately via the compromise of performance and complexity in the practical applications.