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Time-Reversal Massive Multipath Effect: A Single-Antenna “Massive MIMO” Solution

Abstract: 

The explosion of mobile data traffic calls for new efficient 5G technologies beyond what current 4G LTE can provide. Massive MIMO, which has shown the great potential in improving the achievable rate with a very large number of antennas, becomes a popular candidate. However, several critical challenges in designing the analog front-end and coordinating the large-scale antenna array have to be carefully addressed before the massive MIMO can be actually adopted. Therefore, a natural question to ask is: does there exist a good alternative that can achieve similar system performance to massive MIMO with a simpler design? In this paper, we show that by using time-reversal approach, with a sufficiently large bandwidth, one can harvest massive multipath naturally existing in the environment to form high number of virtual antennas to achieve the desired massive MIMO effect with a single antenna. We answer the above question by analyzing the time-reversal massive multipath effect (TRMME) and the achievable rate with different signature waveforms. We also derive the corresponding asymptotic achievable rate under a massive multipath setting. Experiment result based on real channel measurements shows the approach to realize the massive multipaths in practical environment. Moreover, based on our experiment with real indoor measurement, even with only a single antenna, the time-reversal wideband system can achieve comparable performance as the massive MIMO system in terms of expected achievable rate.

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Paper Details

Authors:
Yan Chen, Beibei Wang, K. J. Ray Liu
Submitted On:
23 February 2016 - 1:43pm
Short Link:
Type:
Research Manuscript
Document Year:
2015
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Time-Reversal Massive Multipath Effect A Single Antenna Massive MIMO Solution.pdf

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[1] Yan Chen, Beibei Wang, K. J. Ray Liu, "Time-Reversal Massive Multipath Effect: A Single-Antenna “Massive MIMO” Solution", IEEE SigPort, 2015. [Online]. Available: http://sigport.org/242. Accessed: Aug. 25, 2019.
@article{242-15,
url = {http://sigport.org/242},
author = {Yan Chen; Beibei Wang; K. J. Ray Liu },
publisher = {IEEE SigPort},
title = {Time-Reversal Massive Multipath Effect: A Single-Antenna “Massive MIMO” Solution},
year = {2015} }
TY - EJOUR
T1 - Time-Reversal Massive Multipath Effect: A Single-Antenna “Massive MIMO” Solution
AU - Yan Chen; Beibei Wang; K. J. Ray Liu
PY - 2015
PB - IEEE SigPort
UR - http://sigport.org/242
ER -
Yan Chen, Beibei Wang, K. J. Ray Liu. (2015). Time-Reversal Massive Multipath Effect: A Single-Antenna “Massive MIMO” Solution. IEEE SigPort. http://sigport.org/242
Yan Chen, Beibei Wang, K. J. Ray Liu, 2015. Time-Reversal Massive Multipath Effect: A Single-Antenna “Massive MIMO” Solution. Available at: http://sigport.org/242.
Yan Chen, Beibei Wang, K. J. Ray Liu. (2015). "Time-Reversal Massive Multipath Effect: A Single-Antenna “Massive MIMO” Solution." Web.
1. Yan Chen, Beibei Wang, K. J. Ray Liu. Time-Reversal Massive Multipath Effect: A Single-Antenna “Massive MIMO” Solution [Internet]. IEEE SigPort; 2015. Available from : http://sigport.org/242