60 GHz芯片间无线互连系统中的Rake接收性能

在60 GHz芯片间无线互连信道中存在着多径干扰问题，采用Rake接收是提高系统性能的重要手段。针对脉冲超宽带( IR-UWB)的芯片间无线互连系统，分析了多径信道下Rake接收机的误码性能。在IEEE 802.15.3 c信道模型基础上，对不同分支数以及不同合并方案下的选择Rake ( S-Rake)和部分Rake(P-Rake)接收机误码性能进行了研究。仿真结果表明采用支路数为2的P-Rake在数据速率为10 Gb/s时仍具有良好的抗多径性能，这为芯片间无线互连系统的Rake接收方案提供了技术参考。

Performance of Rake receiver in 60 GHz inter chip wireless interconnect system

In 60 GHz inter chip wireless interconnec channel,signals suffer from multipath propagation. Rake reception is an important way to boost the performance of receivers. With the assumption that impulse radio ultra-wideband(IR-UWB) is used to inter chip wireless interconnect system,the bit error rate(BER) performance of Rake receivers in multipath channels is analyzed. Based on the channel model approved by IEEE802.15.3c group,the BER performance of Selective-Rake(S-Rake) and Partial-Rake(P-Rake) are simulated by using different number of Rake taps and different weighted consolidation strategies. Simulation results show that P-Rake with two taps has better anti-multipath performance for 10 Gb/s. The research provides the technique reference for Rake receiver design of inter chip wireless interconnect systems.