Mikko Vehkaperä — accepted AI-conference papers

2017

Time-multiplexed / superimposed pilot selection for massive MIMO pilot decontamination

Karthik Upadhya, Sergiy A. Vorobyov, Mikko Vehkaperä

ICASSP 2017accepted

In massive multiple-input multiple-output (MIMO) systems, superimposed (SP) and time-multiplexed (TM) pilots exhibit a complementary behavior, with the former and latter schemes offering a higher throughput in high and low inter-cell interference scenarios, respectively. Based on this observation, i…

Cited by 0 Source ↗Scholar ↗

2016

Superimposed pilots: An alternative pilot structure to mitigate pilot contamination in massive MIMO

Karthik Upadhya, Sergiy A. Vorobyov, Mikko Vehkaperä

ICASSP 2016accepted

Superimposed pilots are proposed as an alternative to time-multiplexed pilot and data symbols for mitigating pilot contamination in massive multiple-input multiple-output systems. Provided that the uplink duration is larger than the total number of users in the system, superimposed pilots enable eac…

Cited by 0 Source ↗Scholar ↗