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One-Bit Massive MIMO: Channel Estimation and High-Order Modulations

Sven Jacobsson (Institutionen för signaler och system, Kommunikationssystem) ; Giuseppe Durisi (Institutionen för signaler och system, Kommunikationssystem) ; Mikael Coldrey ; Ulf Gustavsson ; Christoph Studer
2015 IEEE International Conference on Communication Workshop, ICCW 2015 p. 1304-1309. (2015)
[Konferensbidrag, refereegranskat]

We investigate the information-theoretic throughout achievable on a fading communication link when the receiver is equipped with one-bit analog-to-digital converters (ADCs). The analysis is conducted for the setting where neither the transmitter nor the receiver have a priori information on the realization of the fading channels. This means that channel-state information needs to be acquired at the receiver on the basis of the one-bit quantized channel outputs. We show that least-squares (LS) channel estimation combined with joint pilot and data processing is capacity achieving in the single-user, single-receive-antenna case. We also investigate the achievable uplink throughput in a massive multiple-input multiple-output system where each element of the antenna array at the receiver base-station feeds a one-bit ADC. We show that LS channel estimation and maximum-ratio combining are sufficient to support both multiuser operation and the use of high-order constellations. This holds in spite of the severe nonlinearity introduced by the one-bit ADCs.



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Denna post skapades 2015-04-29. Senast ändrad 2016-09-28.
CPL Pubid: 216046

 

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